ATtiny2313A MCU base exposure controller unit with two high-power relay driver stages, an audible notification unit, a safety lock, and a programmable timer. The programmable timer unit supports up to 999 seconds (approximately 16 minutes) of exposure.
This unit tests with four NEC 20W - 60cm (T8) black fluorescent tubes with four separate chokes and starter units.
The unit is specifically designed for developing screens (for screen-printing) and for paint curing.