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An interesting project that describes how to make several useful devices using a CFL bulb ballast, with minimal modification.

This time I will present you an interesting way to use the PCB board from an old CFL bulb to make some useful electronic devices. As we know, these bulbs are no longer in use, so we can buy from the remaining stock for a very low price. I bought 24 watt CFL bulb for less than $2.

I noticed the genius idea these days at the Zafer Yildiz channel and immediately decided to make some kind of device with a CFL bulb electronic board. We can remove the PCB relatively easily with a screwdriver.”

Link to article