This teardown of a recent greenback store instance reveals that price-cutting has managed to shave much more off what was already looking like a market saturated with backside-greenback design. The electrical elements inside this glowing model of price-slicing consists of 1 PCB (previously-seen dollar retailer LED bulb examples had two), eleven LEDs, one bridge rectifier, two resistors, and a controller IC. A wirewound resistor apparently additionally serves as a fuse, simply in case. IC to see what lurks inside, and the result is shown right here. 100 Volts DC that the bridge rectifier and enormous electrolytic cap current to it, and it’s both low-cost and clever in its personal approach. The highest half is a big transistor for chopping the voltage and the underside half is the straightforward management logic