Hummingbird Feeder Warmer/Heater

thingiverse

I ordered these salt lamp fixtures from Amazon to use as heat sources: https://www.amazon.com/gp/product/B07BMPFCG1/ref=ppx_yo_dt_b_asin_title_o03__o00_s00?ie=UTF8&psc=1. The feeders I purchased on Amazon come with more than one light fixture, all sharing the same base: https://www.amazon.com/gp/product/B008RFSJP8/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1. I also found another option on Amazon: https://www.amazon.com/gp/product/B007G2P0FA/ref=ppx_yo_dt_b_asin_title_o02__o00_s00?ie=UTF8&psc=1. To secure the base, I used 5mm bolts. However, you may need to enlarge the holes in the light fixture slightly for them to fit properly. Alternatively, 4mm bolts should work without any modifications. I finished the project off with some rubber bands.