REPTILE LIGHT BULB SB 160 WATT R40 FLOOD SOLAR BRITE PET LAMP SELF BALLASTED MERCURY VAPOR BULB Self Ballasted Mercury Vapor Pet Lamp Medium Base, 160 Watts, 120 Volts, R40 Shape 10,000 Hour Rated Lamp Life Maximum Overall Length (MOL): 7.8" Ideal heat source for all reptiles