Maintenance Engineering's Xtreme Duty L.E.D. Lamps use cutting-edge hi-output LEDs, which save up to 85% energy. Maintenance Engineering offers these LED lamps in the Vitalux Xtrabrite™ color. These lamps are whiter & brighter, and instant-on full brightness, when compared to standard LED lamps. Our LED lamps are also mercury free, and have no UV output. Maintenance Engineering's Premira LED lamps have a detailed design & construction, which ensures a premium quality, long lasting lamp.