Features Lamps available in 40, 60, 80, 120, 150, 200 and 400 watts controller 12 vdc, 85-277 vac. Long average life of 88, 000 to 100, 000 hours, about 20 years of age with use of 4, 000 hours per year High luminous efficiency. 70-80lm / w High color rendering index (cri) 90%, high resolution and natural color Quick start Advantage especially with hot lamp start, taking an obvious advantage against vapor lamps high pressure sodium and metal halide. High power factor > = 0.95 High frequency operation Soft light effect, flicker, protects the eye, makes colors look more natural, like sunlight. Low luminance decay The luminance is maintained at 70% after 60, 000 hours, which ensures stable light output in the life of a lamp. Wide range of color temperatures   a 6500k depending on the application (standard 5000k) Constant power The power varies less than 3% of the input voltage variation of + / -20%, to ensure a constant light source. Works at low temperatures You can work at -20 ° c Low harmonic content Thd