Restoration of Rechargeble COB Work Light With Broken Driver
Restoration of Rechargeble COB work light with broken driver + DIY Custom driver circuit + li-ion battery charger board with replaced current resistor to 2.2k Ohms for 0.5A + li-ion battery capacity tester with transistor BC547 and red & green DIFF LEDS + LM317T 1.2V-25V Adjustable Voltage Regulator...By: fx8
Continue Reading »
from Instructables: exploring - featured http://ift.tt/2pZx8tl
via IFTTT