I'm going to make a UV exposure box to etch PCB boards. I will put a relay and control the UV bulb ON time by a Arduino Uno. The confusion is with the UV bulbs I bought from Aliexpress.
pert:
I extracted the product ID from the URL to find the public listing page
Nice work!
So it looks like they're replacement lamps for a unit (manicurist's curing lamp) that can run at a wide range of AC and DC voltages. I don't think that tells you how to run the actual lamps.
They're the U-shaped CFL type that (I think) doesn't have built-in driver circuitry (inverter/ballast/starter etc), so you'd have to provide that yourself.
It's not as simple as just supplying the correct voltage.
So it looks like they're replacement lamps for a unit (manicurist's curing lamp) that can run at a wide range of AC and DC voltages. I don't think that tells you how to run the actual lamps.
They're the U-shaped CFL type that (I think) doesn't have built-in driver circuitry (inverter/ballast/starter etc), so you'd have to provide that yourself.
It's not as simple as just supplying the correct voltage.
That would make them normal mercury vapor lamps that need to start just like a fluorescent lamp. Then once started, they need current limiting to control the arc. The white color of the glass is to allow only the needed UV frequency to escape.
There is a plant near mine that manufactures/sells stuff for manicurists. The lamps are to cure the epoxy used on finger nails. Dentists do the same to cure epoxy in your tooth repair.
Probably will not work with PC board mfg. They actually work when exposed to direct sunlight. The OP needs to match the UV frequency of the light to the PC board masking frequency requirement. Can't just go pick up any UV light.
