I use UV LEDs for my exposure box - 100 of them, on about a 1" grid, 20 mA, about 5" from the PCB. Takes about 5-6 minutes to expose.
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Re: [Homebrew_PCBs] Home Made UV Exposure Box
2010-03-31 by DJ Delorie
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Message
2010-03-31 by DJ Delorie
I use UV LEDs for my exposure box - 100 of them, on about a 1" grid, 20 mA, about 5" from the PCB. Takes about 5-6 minutes to expose.