The additional benefit is the reduced power consumption (10 to 22W) .The savings from the low energy use of our LED traffic signal lamps can be 80% to 93% and will help reduce greenhouse gas emissions.Product introduce 1. Standard: accords with China standard of GB14887-2003 2. Appearance design: the appearance is specially designed for LED light source, and the structure is more thin and humanism; the shape is attractive; the craftwork is more fine and it is easy to install 3. Lens design: the slope glass surface effectively solve the problem of collecting dust 4. Shell material: aluminum or engineering PC with the characteristics of dustproof, waterproof, anti-flaming and ageing resistance, and the lifetime of the housing is more than 10 years 5. Lighting source: four elements high power LED; this light source is more brightness, abut 3-4 times more than the source of incandescence light; longevity, more than 100,000 hours; the power of each unit is less than 15W, and can save the energy more than 85%Performance index: 1, Raring power: no more than 15W 2, Work voltage: 220V/AC+-20%, 50Hz-60Hz 3, Luminous intensity: 6000mcd/m² (pattern); 500cd (round lamp) 4, Chromaticity: red (618nm 622nm), yellow (588nm 592nm), green (503nm 507nm) 5, Work life: 100,000 hours (25oC) 6, Visual angle: 300° 7, Visual distance: 200m 8, Level of protection: IP53 9, Work temperature: -40 +75oC 10, Relative humidity: when the temperature is 25, the relative humidity is more than 95% 11, Insulated resistance: more than 10m ohm 12, Dielectric strength: withstands 1,440V AC 13, Dustproof: according with standard of GB14887-2003 14, Shockproof: according with standard of GB14887-2003