@diyelectromusic Oh they are still making that classic. The timer on the one at the radio club has not worked for 15years, but the device itself is fine. I have no idea how old it really is.
@diyelectromusic Technically the sun is free and it’ll do it, but if you don’t want to wait a couple of weeks I think the usual cheap timer boxes are fine. I haven’t actually had need to erase one yet. I can confirm that near UV LEDs do work, but I cannot confirm that they work any faster than ambient light. 😅