Maintenance Engineering's Multi-Watt Halogen Reflector lamps are guaranteed to last 15 months and are up to 32% brighter than the standard halogen reflector lamp! Maintenance Engineering's Tungsten Halogen reflector lamps are made with premium quality construction. The smooth even beam eliminates starbursts and hot spots. The hard glass resists weather conditions. M.E. lamps Multi-Mirror technology projects light where it is needed, With less wasted light from edge-spill. The rugged Vibra-shok mount is used for durability. A pure tungsten filament is used for longer life. Maintenance Engineering uses a traditional brass base, since it resists corrosion and freezing in sockets.