1. The lamp is with special technology and reach high luminous efficiency (including power of ballast resistor) is between 68Lm/W to 85Lm/W and color-rendering index is between 80and 85.

2. The optimal luminescent environmental temperature of outdoor sealed lamp fixtures of tri-phosphor oblate leaf lamp can be controlled within scope of 30°Cto 90°Cor 60°Cto 120°Cso that they are suitable to usage of all sealed lamp fixtures. If use ordinary tube, the tube will lose 30% luminance in high temperature.

3. It adopts special manufacturing process and excellent space structure of light tubes to decrease size of lamps greatly. compared with the same power common light bulb, its size can be reduced by 60% to 70%. Increase efficiency and utilization coefficient of lamp fixtures.

4. It adopts solid-state mercury technology to control mercury quantity reliably with environmental protection.

5. Street lamp house is with high efficiency reflector above 95% and can increase 30% illuminance.