LED Bulbs - Hackaday
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This teardown of a current greenback store example shows that price-chopping has managed to shave even more off what was already looking like a market saturated with bottom-greenback design. The electrical parts inside this glowing mannequin of cost-chopping consists of 1 PCB (previously-seen dollar store LED bulb examples had two), eleven LEDs, one bridge rectifier, two resistors, and a controller IC. A wirewound resistor apparently also serves as a fuse, just in case. IC to see what lurks inside, and the result's proven here. One hundred Volts DC that the bridge rectifier and large electrolytic cap present to it, EcoLight reviews and it’s each low-cost and intelligent in its personal method. The highest half is a big transistor for chopping the voltage and the underside half is the simple management logic