GE 250-Watt Dimmable R40 Heat Lamp Incandescent Light BulbGE's Heat Lamps help heat small areas like bathrooms and workbenches or prevent freezing of water pipes, car radiators and pumps. Use this clear lens heat lamp in commercial applications including food warming, heating floor tiles and farming. Uses 250 Watts (1 lumens) Rated to last 4. 6 years based on 3 hours per day use Each bulb costs 30. 11 dollars annually to operate based on 3 hours per day use at 11 cents per kWh 1 bulb per package Clear R40