I’ve gone down the DIY route.
I got strips of white and UV 12V LEDs and wound them as a double helix round a plastic bottle.The bottle cap is bolted under the rain guard of the old trap. A direct connection to a 12V battery provides the power. Over time, I’ll experiment with using just the white LEDs or the UVs or both together.
In another bottle, I mounted a 240V 20W actinic Wemlight tube. This doesn’t require a ballast, just a direct connection to the mains. It also mounts to bottle cap under the rain guard.
Initial catches have been encouraging.
Minimal waste. A trap with alternative lights and power sources. What’s not to like?