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leds 50w em fonte 250w queima?
bobh2started grow question 4 years ago
To buy leds cob 42-48W 36-39 V 1200mA 3500k, and to cut costs, I want to use a 250W step up with a 24v 20A 250W switching power supply, if I connect 5 cob leds will the leds burn out?
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spacetimemananswered grow question 4 years ago
It looks like you try to choose a wrong driver. Your power supply must have constant current output with current that is compatible with your COBs. Also I recommend to use AC-DC driver to plug it in your power socket directly.
And I must warn you: do not buy AliExpress leds, their real characteristics are far away from those they write. My advice is to buy Cree, Bridgelux, Citizen, etc. COBs and Meanwell driver.
DeadwebsiteBoringcommunityanswered grow question 4 years ago
Yes the amperage is much to high on the 20A side. 4 amps a diode is too much and You will "throttle" the diode. You will need a power supply rated @ 250W With 36v and a 5-6 amp current. The "24v" from the power supply you have will not be enough and the diodes will either not turn on or be be dim. This can be costly/time consuming and dangerous so be smarter and don't cheap out. The power supply you are using is simply not designed for the diodes in question.
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