- Jul 10, 2015
A lot of those adjustable DC to DC buck/boost like that will spike when you first turn them on, you can start low and adjust to your desired current, but when you switch it off then back on it will spike and blow led's and ld's.Hear is the driver,
EDIT: Ok I see it's not an adjustable, it's 30W and your led is 10W, there's your problem.
Don't use one of these adjustable units as is to limit current, they will spike.
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