Compact fluorescent light bulbs (CFL) and LED light bulbs are great energy savers, but they are not safe in extreme temperatures.
If you need to replace your oven light, look for appliance light bulbs. These hardy little bulbs are here to stay since they are designed for extreme temperatures in ovens and refrigerators. Forty‐watt (40 –watt) bulbs are exempt from federal efficiency standards.
CFL and LED bulbs can melt in oven temperatures and cause a fire. Lighting labels should designate safe temperatures, but warnings may be in fine print.
Be safe!