Nice, simple robust design. Yes you can save considerabe bucks this way. I 3d printed riser fixtures for porch stairs. They accept little g3 format 12v bulbs with built-in drivers. So far working well. Commercial equal was at least $80 each. Yikes.
Somewhere down the line COB was stated as Cluster Of Bulbs to me and I always wondered why an LED would be referred to as a bulb. Finally your video has cleared that up for me. I actually googled the term to verify it. I've been working with 3W COBs lately so I would like to see more, Thanks.
Nice video thanks, a little suggestion you could spray paint white the aluminium plate so you have more light, looks better and doesn't really affect the cooling of the led.
Thanx for the info. These are some nicely done LED's. Cheers. :) Unfortunately, DigiKey sells some of them (CXB 2200K, 2700K) only in bulk (100 pieces), which costs too much as for a test buy. ;)
As far as I know you do need a current limiting component or module even if the voltages match. I think what saved the LED was the internal resistance of the batteries. Please correct me if I’m wrong!
Today, there are many PCB based LED's that have the regulating components built in and many that do not. When you actually purchase them, you should see this defined clearly if it's a reputable source. I have a ton of 100-watt COB modules that run off 120 VAC and have the regulator, rectifier and stiffening capacitor all on the board. You still really need an isolation transformer but they can be wired direct if you absolutely must. As far as a 3 VDC cob LED that's stand alone without any onboard devices, I literally have thousands IDK what he's talking about lol.
Resistors are current limiting components. That's what resistors do. The problem with resistors is they shed excess power by turning it into heat. So they're not terribly efficient. A constant current source could be more efficient.
@@1pcfredI wonder what make a cc source more efficient than a resistor. They dissipate the same power for given supply voltage. In fact the cc source will need a bit extra to drive its regulation.
@@JonDeth Thanks for your comment. I was referring to the 3V LED. I’ve bought a few 230V LED panels with built in regulators. Just out of curiosity mostly. I’ve also bought a few floodlights that had similar panels inside. On two out of three the earth wire wasn’t connected and these panels only have a very thin layer of isolation. I’ve made it a habit to always check the earth connection on appliances like these.
Nice, simple robust design. Yes you can save considerabe bucks this way. I 3d printed riser fixtures for porch stairs. They accept little g3 format 12v bulbs with built-in drivers. So far working well. Commercial equal was at least $80 each. Yikes.
Somewhere down the line COB was stated as Cluster Of Bulbs to me and I always wondered why an LED would be referred to as a bulb. Finally your video has cleared that up for me. I actually googled the term to verify it. I've been working with 3W COBs lately so I would like to see more, Thanks.
Nice video thanks, a little suggestion you could spray paint white the aluminium plate so you have more light, looks better and doesn't really affect the cooling of the led.
I just run around with a LED flashlight.
ജോൺ ഓഡിയോ ടെക്❤
Thanx for the info. These are some nicely done LED's. Cheers. :) Unfortunately, DigiKey sells some of them (CXB 2200K, 2700K) only in bulk (100 pieces), which costs too much as for a test buy. ;)
As far as I know you do need a current limiting component or module even if the voltages match.
I think what saved the LED was the internal resistance of the batteries.
Please correct me if I’m wrong!
Today, there are many PCB based LED's that have the regulating components built in and many that do not. When you actually purchase them, you should see this defined clearly if it's a reputable source.
I have a ton of 100-watt COB modules that run off 120 VAC and have the regulator, rectifier and stiffening capacitor all on the board. You still really need an isolation transformer but they can be wired direct if you absolutely must.
As far as a 3 VDC cob LED that's stand alone without any onboard devices, I literally have thousands IDK what he's talking about lol.
Resistors are current limiting components. That's what resistors do. The problem with resistors is they shed excess power by turning it into heat. So they're not terribly efficient. A constant current source could be more efficient.
@@1pcfredI wonder what make a cc source more efficient than a resistor. They dissipate the same power for given supply voltage. In fact the cc source will need a bit extra to drive its regulation.
@@JonDeth Thanks for your comment.
I was referring to the 3V LED.
I’ve bought a few 230V LED panels with built in regulators. Just out of curiosity mostly.
I’ve also bought a few floodlights that had similar panels inside. On two out of three the earth wire wasn’t connected and these panels only have a very thin layer of isolation.
I’ve made it a habit to always check the earth connection on appliances like these.
@@1pcfred I agree. Thanks for the confirmation.
,👍❤️🫂