A wide range of operating voltage, long life, low light failure, low maintenance costs. 2, high luminous efficiency, energy saving: Compared with ordinary light bulb energy saving up to 90% more energy efficient than ordinary energy-saving lamps 30% 3, can directly replace traditional energy-saving lamps. 4, environmental pollution, does not contain environmentally harmful mercury pollution. 5, the working temperature: -20-40 ° C 6, life :30000-50000 hours