Solar LED traffic light sources, Last much longer than incandescent signals (7 to 10 years instead of 2 years) and fail less frequentlyDetailed parameters: Working voltage: 12V DC Power: 8W Size: 300mm Wavelength: 590-595nm Luminous intensity: >400CD LED: yellow 85 Housing material: aluminum or PC Features: 1) Standard: according to Chinese 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 beautiful; and 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