jacketed infrared quartz heat bulb r7 halogen spot heater lcb low cost beam zeiss microscopy campus xenon clear g4 base light bulb 0624000 40 watt halogen bulb 120v g9 base 2pc halogen heater replacement s halogen infrared reflecting hir lamps portable halogen heater inside 1 3d a 881 896 898 12v 27w halogen bulbs 5330 0047 halogen lamp jasco halogen bulb 35w hr16 c e27 z0b0014 halogen infrared reflecting hir lamps asb w 005 5w tungsten halogen fiber 10w clear jc type halogen inserted 61543 western sealed beam halogen light 12v g4 warm light bulbs