Satco Products S4999 250R40 Medium Base 1 Clear Heat Lamp (2 Pack) Manufacturer part Number: S4999 Saco incandescent heat lamp R40, 250 watt, 120 volt, Medium base, clear, 6,000 average rated hours, 12 per case - 2474165 250R40 1 heat lamp medium base Clear heat lamp 5000 Hours