Inside a sealed Chinese Solar street light with Doppler detection.
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- Опубліковано 29 гру 2018
- I bought this light from banggood, partly because it looked like it had a decent solar panel and partly because it wasn't getting good reviews.
It's definitely not designed for maintenance.
Provisional tests show that on a bright but cloudy winter day the panel output was about 70mA. I'm going to have to do side by side comparisons with other solar modules. It is indicative of what I'd get here on a typical December day with good panel placement. At the moment it doesn't bode well for all-night illumination. It's probably going to spend a lot of time at a very low battery voltage in the winter here. Probably much better in sunnier parts of the world though.
I still have to finish testing the lithium cell which turns out to be Lithium Iron Phosphate (LiFePO4) (The charging stopped at 3.65V) with an early indication of about 3000mAh, but further full cycle tests are in progress. This has probably been chosen for its stability and high charge/discharge cycle capability. That also explains the need for a boost regulator circuit to allow a stable 3V supply to be obtained for the sense circuitry. It also blows my current test figures out the water. A retest shows:-
Full charge (3.6V) high output 1100mA (3W at an LED voltage of 2.9V)
Full charge (3.6V) low output 140mA (0.4W at an LED voltage of 2.65V)
Low charge (2.8V) high output 269mA
Low charge (2.8V) low output 40mA
The power resistors run at a very acceptable 40C above ambient when the high setting is triggered continuously.
If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:-
www.bigclive.com/coffee.htm
This also keeps the channel independent of UA-cam's advertising algorithms allowing it to be a bit more dangerous and naughty. - Наука та технологія
"14 sold, two reviews and both are bad - that was the final stroke, i had to buy it". I love you Clive.
ua-cam.com/video/63qtYi1nwcs/v-deo.html
@@hughsgarbagetrucks link is safe, it’s a video with a large quantity of floppy drives.
Long and rambly and unedited. Those videos are the best!
1:18 - "So this is the bit that can rust" - Hahaha, I love your subtle and dry humour! Makes for a great count-along: This is the bit that can rust, that is the bit that explodes, here is the bit that makes the scrunchy noises, there's the container for the magic smoke, and this is where it's all gone horribly wrong!
Another delightful video indeed, thanks!
Rust never sleeps.
Rust is that ever so lovely crust, appearing on everything it must
Rust.... Rust never changes
@@motalasuger I trust that Diamonds never rust.
The way Clive said that makes me think that one of the reviewers complained about parts that can or do rust.
The compacter rubbish bins should have had a large lever and a "Test your strength" sign.
+
Everything is better with gamification!
Are those real? I can't picture getting a squish from less than a few weeks of full sun. Around here the solar bins just monitor their fullness and call for emptying as needed.
@@tactileslut Now that you mention it, that would make a lot more sense than expecting to charge up enough for a compactor.
You are delightful to listen to...
By far the my best channel hands down .!
Big Clive! I have found your channel recently and I can't stop watching! So interesting and your breakdowns of everything useful is fantastic. I'm an electrician and HV technician but always loved electronics. Great stuff Clive and thankyou 👍 NW England
3:57 "It's got the vents for the battery explosion."
Oh, Clive, Happy new year.
Awesome Video Clive. You cover EVERYTHING! What a mind you have.
**cuts lamp open with dremel**
“I don’t want to damage anything”
It'll buff out.
Don't act like you expected anything different.
+Gerhard Prins:
I would like to have one of those. There are a lot of things I would like to cut.
@@louistournas120 .. don't know where you are but in UK a Dremel is only about £50.00 ( sometimes it's all the accessories that add up )
Dremel tools suck, I have had to many of them fail with no warning.Get one of these, Milwaukee 2460-20 M12 12-Volt Rotary Tool, cordless and about $75 bare tool $130 in a complete kit.Amazon.
This channel is better than anything main stream TV can churn out
Loving the way to take this apart. Cutting it open with a dremel close to the battery, cutting towards your finger with a sharp knife and fiddling with the circuitboard without grounding yourself. Entertaining! Very nice :D
They sealed it because they knew you were going to try and open it ! Lol!
But in the end they were good to Clive in that they did not scrub all the part numbers the devices.
Will it blend?
@@ExtantFrodo2 .. no, will it chooch ??
@@ExtantFrodo2 THAT'S ALOT OF DAMAGE!
@@888johnmac
No... Will it fan spin?
Thanks Big Clive. That was interesting. Seems like a pretty nice little unit.
Thanks, bidclive, for the teardown and explanation. Electronics was never my strong point, so I appreciate what you do. Also, it's great to see what's out there so we don't get scammed. Best wishes from Limerick Eire.
Another brilliant video. I thought that the LED reflector had a fresnel geometry look to it. Also, if it's a LiFePo, I was thinking that it might have a greater lifespan capable of delivering more charge cycles. I now wait patiently for your next video. Huge thumbs up!
I love the commentary, the wit, the humor "calm yourself Clive you can't absorb all the knowledge at once" You are brilliant and funny a rare combination, I wish I had 1/10 of the electrical information and knowledge sloshing around in the Jägermeister that you enjoy.... damn it man I have knowledge envy :~ lol
thanks for the ride along and all the cool vids you make sir!
Brilliant! Happy New Year Clive!
You know it's _good_ when it bears the *Chinese Excrement* logo...
Top vid, Happy new year to you Clive.
Isle of man! my wifes best friend use to live there for a couple years. I so want to visit that island after hearing all her interesting stories!
The problem with radar / microwave detectors for outside lights is that they turn on when it rains! I've just swapped an outdoor unit to a PIR one, coz for that very reason.
Or movement through glass... They're pain sometimes.
Ours turned on every time the neighbour used their bedroom! We had to lower the sensitivity :)
I have a light on my garage that turn on everytime a police car pass in the street 20 meters away. but I need to be at 5-6 meters to be able to light it. any idea why ?
My radar detector light has a manual override switch, so I just turn it off using that when I don't want it to come on.
@@anononomous unfortunately, I tend to be asleep when it rains at night, so a manual override won't help😀
At least banggood do actually seem to be publishing negative reviews these days - it used to be the case that they simply didn't publish anything lower than 4 stars, which led to people resorting to posting reviews with 5 stars... but then absolutely slamming it in the comments in hopes that whoever was moderating them wouldn't actually read the comments!
I hate the bull that comes with online reviews. To me, 3 out of 5 stars is the norm, ie I got exactly what I expected. It's actually a good, honest review and is also a recommendation.
@@georgeprout42 And it's only become worse with companies offering free samples to every nobody with a UA-cam account or Instagram profile with 1000+ bot followers to shamelessly shill their products in exchange for free samples & money off coupons >_>
Yes, they are a sneaky mob...
I often sponsor home projects with a delicious beverage 😃 awesome vid as always!!!
“That was the final straw, I *had* to buy it” was quite good! It gave me a good laugh.
Interesting video. You have a fine way of taking out the screws to see what the case is in whatever you want to analyze.
Happy New Year!
This video was quite enjoyable! Thank you big Clive!
Jagermeister and Chinese street lamps, you live my kind of life, Clive. :)
Happy Christmas Clive!
I've seen a few live open street lights recently, makes me want to poke around because of you 😅
"Dremel it out" Your solutions always bring a smile to my face! (And an audible laugh :D)
Inch tenth markings....my world has changed today
Thanks Clive
Great vids as always Clive, had to put you on pause for half hour while I ran out and got a bottle of Jagermeister, you made me thirsty, lol....HAPPY NEW YEAR..
Have one in back yard works fine. Full light to solar panel. THANK YOU FOR YOUR WORK!!
Ordered a few things from Bangood over a month ago and still waiting... I hate waiting lol great video Clive!
Clive.. not sure how I landed upon your amaturish videos... But man, sure glad I did! Friggin' awesome! 2 negative reviews, so it sealed the deal. lol!
As usual great video. CLIVE. THANKS
I just picked up a couple of square Old Street lamp style heads off ebay with 30 LEDs with an optional switched internal PIR to illuminate 28 of them on motion sense with two on permanently.The solar panel is 210 mm x 210 mm and measuring in sunlight gives 6,22 volt @ 28 mA with a 3600 mAh 3.6 volt battery pack installed that works in a similar way if the panel produces any voltage it turns the light off. That said if my calculations are correct its going to take over 100 hours to charge the pack up and the light only stays on for 2-3 hours under normal charging conditions so I have bodged the circuitry board from an 18650 3.7v battery charger in a case to make a permanent feed instead of the battery pack. Testing shows energy produced from the solar panel turns off the light so it looks good to go, testing commences.
"The solar panel is 210 mm x 210 mm and measuring in sunlight gives 6,22 volt @ 28 mA" that sounds like a bad solar panel. I have a 68*36mm one that does about 5V / 40 mA in sunlight. Look at yours under a bright light, maybe one or more of the cells are cracked, it happens.
I'm wondering if it is a ultracap rather than a lithium cell...looking forward to the next vid - and the NYE party tonight: ) Thanks for the great videos this year, all the best for the new year to everyone!
these videos are my favourite thing ever
Nice to know about such a simple radar; might be useful as part of a compact theremin
Brilliant work. Thank you.
I too use the tooth test, especially checking if stuff is uranium glass or a glowing green plastic.
Interesting product on the inside. Thank you for explaining how the numbers correspond to a lithium battery, I always learn something from your videos Clive. Side note, I have the Chinese version of that stainless ruler you showed, they don’t measure from the exact end, the increments begin 1/8” from the starting edge. 😂. Foolishly I’d ordered several of them at the time.
Those holes are more likely to let the smoke out
DUUUUAAAGH! Bronies...
You can't let the smoke out !
Smoke is essential in electric circuitry.
They run by steam!
@@werner.x It's magic smoke
What if actuall power inside batteries is smoke? And when we open them it get away?
Or letting hornets and spiders in (just big enough), and you get a nest as a bonus feature.
love when he cracks things open
Dude who are you and why are you doing this? I sense great awesomeness and some old school sarcasm... Thank you sir!
Absolutely outstanding video!!!
The same thing appears to also be available on eBay in 20/40/60W versions.
Those vent holes look like a great home for moisture and many creepy crawly things.
Problem with making things water tight: Condensation have problems getting out once it get in. It is not uncommon to have drain holes in electrical equipment that is meant to be used in a wet area (like outside or a slaughter house).
Yep, all the mains voltage switches & junction boxes on the outside of my house have little drainage holes in the bottom of them. If you don't have the hole they gradually fill up with water from condensation.
Sweet spot is big enough to let moisture out but small enough to stop most things from crawling in. They look like they might be a bit big to achieve the latter.
@@phil955i Key word... "little" drainage holes. They're called weep holes for a reason. The water is meant to be able to weep out, not pour out; or in. The giant holes in this light are way too big; as the op mentioned.
@@xenonram yes I agree they're over the top to let water out but double as ventilation as Clive said in the video?
spot on with the ruler and tape, how many times have I measured things at 10ft4" X2.31mtrs
the Dremel of Discovery ??
YES
Dremel of Delicate Discovery. Well, it certainly _is_ delicate compared to Clive's... X-ray machine.
@@AttilaAsztalos , clives X ray machine AKA a hammer
That's the one... :D
I like your UA-cam videos keep up the good work
You possibly could have removed the solar panel by pushing dental floss (or another strong thread like kevlar) in at one corner and then sliding it back and forth to "saw" it off. It often works quite well, but is very slow if it was well glued.
Excellent video
The circuitry looks similar to the Open Trails solar lights sold in Dollar General stores in the states.
I had a motion alarm with the same sensor, even had the same plastic dome. Had to use it only for a short while and did it's job. Not sure if it's a good sensor for a proper intruder alarm though.
Rule to live by: NEVER investigate a lithium battery "shortly."
The reflectors may no as useful as on standard bulbs but in my testing they still increase brightness approximately 5-10% for leds. All depending on the angle of the reflector though of course, the farther out it comes the more stray light it catches.
The passive IR detector could be used in the same way as a "duel tec" type alarm motion detector which could reduce false triggers?
I have a similar street light. But one day the sensing system stopped working. It won't go back to full brightness anymore, just dim light. After turning it on using the switch, it will light up full brightness for 20-30 secs perhaps then go back to dim. I can't find where to buy this whole circuit board.
The reflector looks more like a stepping ring... If they had some larger panels to install it gives them the space
Wish I could give you more thumbs up just for the Jägermeister.
William Ray oh that stuff is awful had a bud that drank too much of it and puked you think it smells bad going down !!
@@johnsiders7819 Let me guess, you completely left out any and all punctuation from your comment to illustrate the vomit-y character of that particular event, yes?
@Ungregistered User Nothing wrong with them.
Oh boy the punctuation PC people !!! LOL yes It did smell that bad ! been sitting opposite of a guy playing poker when he got sick from that hot damn stuff too ! I left my money laying there in the mess !
"PC" - You should stop parroting terms that you do not understand.
I'm amazed radar is so cheap now that it can be used in a commodity consumer good like this. Most of the equipment I work on is still using active IR or EM inductive sensors.
"Radar" is really just the principle, and it can be implemented in many ways. It's what accuracy and resolution you expect from the implementation that makes it cheap or expensive. This here is really just a very simple resonating circuit that is deliberately laid out open and unscreened to -abuse- creatively employ natural weaknesses of such type of circuits, namely both radiating radio waves and being themselves affected by radio waves. Sure, you won't be able to pinpoint and track aircraft and missiles at thousands of kilometres with it, but if THOSE are the types of visitors you regularly require to detect, turning on a light at your door will probably not be very high on the list of things to automate when they do come visiting.
I too am rather fascinated by street lights.
A few years ago the A Road near me was mainly changed from low pressure sodium to LED. But some of the fittings were not changed. These turned out to be those that went off during about midnight to 6am. This left a rather messy overall look, although recently all the road is LED.
On the subject of radar detectors, my porch light has one fitted internally, triggered from behind the opal glass cover. It still works remarkably well, going through the double glazed front door and picking up movement inside the house.
What a pity. Downgraded from LPS to LED. I'll bet the LED fittings won't last as long.
@@Detroit8V92tta It is the "smart" five gjee agenda. Try to resist this agenda.
Excellent review I was attempting to buy one of those but now I am looking for circuit of your lamp I have speare 60ah LiFeYPO4 cell from Winston and have no use for that....👍
From experience Chinese solar panels are just for decoration. :D
Would the radar work if the unit was mounted horizontally? IOW does the orientation of the antenna change the sensitivity?
I had bought one of these with 3 led clusters in it and I had always wondered what was inside. I'm hoping that mine has more than one cell in it, but it does have a really big solar cell on top. EDIT: I thought you would like to know that my larger version of this light has lasted very well so far and has not missed a night of light. Even with weeks of cloudy weather it still stays on
Dear Clive, please can you do a Rewiew of the Turdtwister Gadget?
Can you please give me the lcd panel specifications please.
Hilarious solar fail stories at the end, gave me a chuckle lol
That was very good 6W6V solar panel from Dealextreme. The glass was more abrasion resistant than plastics. Unfortunately they dont sell them anymore. In metal frame it was quite resilient.
Got all that stuff last time, happy 2019.
I recently bought one of these types of lights off of Amazon for an industrial property that has had recent break-ins in the area.
The one I bought was about $240, but it is 100,000 lumens bright when it detects motion, and then dims down to something like 10,000 once the motion timer has expired. It has very nice glass solar cells completely covering the top of the unit, has radar detection, has a 30Ah pack of 18650's inside, comes with a remote control to be able to setup the options from the ground, and came with a fairly decent mounting bracket and pole. The design of mine has quite a peaked top, with the solar cells covering both sides, and is quite nice because the snow we get here slides right off of it.
If it had a flat-top, I fear I would be climbing up there to brush the snow off it when we get an inch or more. (which is quite often in the winter here). It has been working everyday for several months now, and gets enough charge during the gray winter months here to keep going. It wasn't exactly a cheap light, but it seems to be worth what I paid for it.
Could the infrared option be for a remote control receiver circuit for distance override operation?
How about seeing how it works before tearing it up?
I think the IR1 and U5 are an IR receiver/micro pair. When populated you can use a IR remote control to do different things.
Regarding the power design of PCB and size of the led reflector, you could probably fit in rectangular 200w cob led.
It would be cool to hook up the antenna of that to the scope to see the frequency it is operating at and see how it changes when something moves in front of it.
C MJ It would require a very expensive scope. The frequency will be about 10GHz!
Typically you will downmix it to get to a more manageable frequency if you wanna measure SHF stuff with a scope.
Doesn't have to be expensive, depending on the frequency you can use an LNB from an old sattelite dish.
@@mfbfreak Clever!
Clive, Do you ever post a review on E-bay or Banggood, etc after dissecting your purchases? Is there any indication you are helping the Chinese engineers to design and build better electronics? Do they watch your videos?
Hello from Kansas USA! I really enjoy your videos. Just wondering how you determined the battery's chemistry. PS Happy New Year! Keep up the good work.
Testing showed it to be LiFePO4 based on the charge cut off of the protection circuit. (3.65V)
So, If you remove the R14 it should stay dark until it picks up motion, then turn on at full brightness? That would make the battery last longer if I am correct.
I shivered as you sipped the Jager
I'd rather drink flux.
Try a little petrol on the silicone adhesive. Turns silicone into a greasy slime then put some kind of wedge behind the glass. Cardinal rule of adhesive joint design = avoid any kind of peel load, tension or sheer only. A wedge will peel the joint open.
I get the feeling that this IR1 pad might be not for passive ir sensor but for ir remote receiver, that 8 pin chip being a small micro.
indeed, I get the same hunch. For IR remote control of ON/OFF/AUTO at DAWN. Quite difficult to press the ON/OFF button when the lamp is up on a pole ...
happy newyear
The smell after cutting comes well from the heated plastic during the cut-grinding process. cutting this way just cooks plastic along the cutting line.
Well done... will be interesting to see how "inspiring" the panel is in full sun! Would also be equally interesting to see how many max Lumens the cob puts out at a distance of around 3 meters!?
"American dollar the currency of the Internet" :)
The one thing that is going to make or break this design is the quality of the lithium cell, the quality of the LEDs, the quality of the solar panel and an almost fanatical devotion to the Pope.
I didn't expect the Spanish Inquisition on a Big Clive video!!!
@@stepheneyles2198 [JARRING INSTRUMENTAL STING]
Interesting... I would like to get something like this, but configured to work as a light in my shed.
Jagermeister 😂😂 you are really my hero! ❤️
I wonder if you could solder in a PIR and see what happens . Will the radar and the PIR wok in conjunction with each other or cancell each other out or maybe its programmed to have bothe or can be programmed for that . Interesting , give it a try
a lot of those solar lights,we boat people incorporate into our house lighting,cross wire the sensor with a switch,,they’re very durable and long lasting, technology keeps getting better
"The problem with dremeling things with lithium batteries in it is you just don't know where the smokes coming from." - probably Douglas Adams said it first, but you said it best.
About that 32700 number, I thought it was a direct extension from 2032 cells being 20 mm Ø times 3.2mm tall, just needing an extra digit for 70.0mm tall button cells.
What happened to the protection offered by the thermo nuclear pie dish when peeling the battery?👍👍👍👍
It's always on standby.
How do you do your board images, scanner? Wondering because this is an excellent way to look at a circuit.
Photo with good lighting.
Basically it's a D cell. But if you could charge it to 4.2V it almost certainly isn't an LiFePO4 cell - they top out at about 3.6V and have a notional voltage of 3.2.
This one did cut off at 3.65V
it Looked like a 26650 cell to me, but at those voltages it isn't.
@@cmj20002 I have a carton (80 cells) of 32700 LiFePO4 that look nearly identical to that one. 18650, 26650, and 32700 etc specify a size and shape, not a chemistry.
@@cmj20002 definitely not a 26650 if its 32x70mm...
@@bigclivedotcom could this radar circuit replace the PIR in one of those wildlife cameras ? or maybe a microphone mod that ads a microphone to the PIR to get the camera to trigger by sound and PIR/microwave radar ?
What's actually driving the microwave transistor? Is it a PLL or a simple DRO like the HB100?
(Speaking of you'd probably have fun with the HB100 if you haven't played with it yet)
no, the transistor is configured to be a free running negative resistance oscillator. The only tuned element also doubles as the transmit and receive antennas.