12.00 Volts to 10.00 Volts LED Bucker
Never a dull moment. Genuine 10 watt LED chips (they need a heatsink) are not 12.00 volts capable. Driven much higher than 10.00 volts, light output stays the same but heat increases as dramaticall...
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In parallel. Hope to run as many as four. Forty watts.
Frankly I do not trust operational specifications of Chinese manufacturers. They may post what looks to be succinct values, then I find them to be at variance with reality. A variable power supply and IR thermocouple tell no lies. When heat increases, the limit has been reached.
Thank you for the link. I read it. I bookmarked it.
I purchased a hundred 100mm 24 fin count heat sinks on eBay for a buck each. Drilled and tapped for the 10 watt devices. Including M3 screws and heat sink compound.
Trying to make lamps for rural homes. Extremely affordable. Some folks run wires, pop the hood and do the best they can for the night. One light on and off, kitchen & bedroom. They cannot afford cyclable batteries, and a six hour discharge at 10 watts is not going to break the bank. No I am not factoring in converter efficiency loss, here.
Frankly I do not trust operational specifications of Chinese manufacturers. They may post what looks to be succinct values, then I find them to be at variance with reality. A variable power supply and IR thermocouple tell no lies. When heat increases, the limit has been reached.
Thank you for the link. I read it. I bookmarked it.
I purchased a hundred 100mm 24 fin count heat sinks on eBay for a buck each. Drilled and tapped for the 10 watt devices. Including M3 screws and heat sink compound.
Trying to make lamps for rural homes. Extremely affordable. Some folks run wires, pop the hood and do the best they can for the night. One light on and off, kitchen & bedroom. They cannot afford cyclable batteries, and a six hour discharge at 10 watts is not going to break the bank. No I am not factoring in converter efficiency loss, here.
