Instant warmth for dozens of heating and drying jobs. Great for warming up bathrooms, treating sore muscles, drying paint, thawing frozen pipes or keeping food warm. Ideal for poultry and pig brooders.Shatter resistant and weatherproof red heat lamps are made from hardened red borosilicate glass not "painted red" on the outside of the lamp so color will not peel or burn off. Hi-temp lamps won't crack, yellow or deteriorate even at temps up to 550 deg. F. 6000 average rated hours. Medium base. 120 volts. R40 incandescent. Dimmable.