Wery nice, good idea. :-)
I try plastic material for bird house, bad choice. Not a single time the birds nestle down. Use wood material ONLY, best one is with crust / coat . Not to use colouring agent.
This is photo from repairs.
I did repair such as COB LED 2 years ago, but I finds from 3 to 8 LED diode at once as burst. More easily was the LED control with two AA battery in the holder. Also I did file of a top from plastic cover for better cooling.