1 High intensity, high resistance of shock or vibration 2 High efficiency up to 85%, 110lm/watt 3 Low illumination attenuation, 3% - 5% degradation/1kh 4 Long lifespan: 50,000hrs, 25 times more than normal energy-saving lamps. 5 Excellent heat dispersion, and low power consumption. 6 Easy installation, free maintanence. 7 High Power Factor: 0.85 8 No UV radiation 9 No mercury or other inorganics 10 Constant current to guarantee long life www.streetlight-sx.com