Stock up with a 3-pack of halogen pucks. Halogen produces more heat. If not already, these pucks are quickly becoming dinosaurs. After a while they wear out due to ~12/24 hours of daily use. In the meantime (years) they are great.
Low wattage replacement bulbs (20 watt 12 volt G4 pin base -- Westinghouse brand bulbs) are still sold @ Ace.
I've used halogen pucks for my
Phelsuma barbouri for years.
If you find them, dim them down just a bit when in use by a rheostat. I've heard the bulbs last longer then.
Here's a reliable ~$4 rheostat Home Depot sells.
