This will be a video that disassembles and explains the 100 yen LED bulb I bought at DAISO!
DAISO is the 100 yen shop in japan.
100 yen is about US $1.
[Impression]
I had the impression that the circuit was simple with as few parts as possible.
However, the circuit board uses an aluminum base board.
It was more solidly built than expected.
The board was not silk printed, but letters were written in copper foil with the resist removed.
Glimpses of cost reduction efforts were seen, such as mounting the control circuit and electric field capacitors on the same board as the LEDs, which generate a lot of heat, to make a single board.
Placing ICs and especially electric field capacitors in places that generate a lot of heat is a negative in terms of product life and reliability, but I think it is essential in order to sell the product for 100 yen.
It was a very informative product.