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Published on Jul 13, 2015
this DIY LED Lighting USB 5 Volt can be used for multifunctions ie: Emergency LED Light (with power bank as power supply), Light Lamp for laptop, LED Night Light (with 5 Volt adapter/charger as power supply). the circuit & constructions is simple and its low power, consist 4 super bright LED, variable resistor (potensio) for dimming control, resistor for limiting the current, and USB connector.