Cheap Chinese garden lights have some features which make them ideal for use as power supplies for UV LEDs being tested on CRB traps:
- ruggedized, water resistant
- solar powered rechargable battery
- LED turns on at dusk; just in time for the CRB flight period
I tried replacing the white LED that come with the unit with one of our UV LEDs. It works!
To make the LED omnidirectional, it is simply a matter of scuffing the plastic lens with 400 grit sandpaper to turn it into a diffuser.
Here's an interesting YouTube article explaining how the cicuit works:
Solar powered UVLED applied to pan trap