Want to use many waste LED rechargeable flashlight converted into ordinary lighting, what should be placed to surge?
I half a year ago whim, bought more than 1000 straw hat head, with 6X8 hole board made N lamp board, finally found that the effect is often bad, gave up.A board of 48 led, a group of 8, each with a resistance of 10 ohms, in 6 groups, with 5V 1A charger with two, measured brightness is less than Cree R3, with the Cree 4007 OK series, also spent more than half an hour to do block lamp board.
Disassemble the LED lamp board will not burn easily. LED is a nonlinear device, and it doesn't matter much to the LED as long as it doesn't change too far. LED is afraid of the current and the temperature.
As long as the choice of the current limiting resistor, power supply with 5V charger is a wooden problem. If a LED is not directly connected to the charger series resistance, unless it is a high-power LED power charger is greater than or equal, or not burn blame.
