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Applicable Scenarios
Friendly Tips
Constant current LED drivers are recommended for high power COB LEDs.
Working temperature should be less than 60 Degrees Celsius / (140 Fahrenheit) with a Heat Sink System.
Please refer to the positive (anode +) and negative (cathode -) sign on Leds.
Todd K. Moyer
Reviewed in the United States on February 24, 2025
These LEDs produce an intense red light without consuming a huge amount of power. At maximum current of 0.7 A, I measured just over 1.9 V, or a bit above 1.3 W.I took a sweep of the V-I characteristic on one unit, you can see the graph, which would help you approximate how much forward voltage you'll see for a given amount of current.It looks like there are 4 LED chips in this assembly; they are apparently in parallel, and matched well enough to be connected that way.The pads on the circuit board on the '+' side (3 pads), and those on the '-' side (another 3 pads) are connected together.It's not exactly clear how you would mount this LED. Presumably some thermal grease on the aluminum side would be good, to transfer more heat away. However I found that the temperature at full power (0.7 A drive) was moderate, just having the assembly in free air. According to my IR thermometer the heat sink temperature stayed below 50 C.
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