High-pressure sodium lamps, fluorescent lamps, and electrodeless lamps contain chemical pollutants such as mercury and lead, while LED tunnel light sources do not contain chemical pollutants and belong to green light sources.

LED tunnel light is a kind of light-efficiency energy-saving lamp. Light-emitting diode (LED) is used as the light source, which has high light efficiency and long life. It can realize multi-purpose lighting with different mirror surfaces; the ballast adopts overheating protection technology to ensure the use of the lamp. life. LED tunnel light adopts imported high-purity aluminum anodized material as reflector and through precise distribution design, power factor is greater than 0.9, high reflection efficiency, good light transmittance, energy saving and environmental protection. Comparison of LED tunnel lights and traditional tunnel lighting sources LEDs are solid-state semiconductor devices. Compared with traditional road tunnel lighting sources (sodium lamps, metal halide lamps, etc.), it can directly convert electricity into light.

LED tunnel lights have the following advantages:

(1) Small light decay: if the heat dissipation conditions are good, the positive light decay of the LED in the first 10,000 hours is 3% and 10% in the first 10,000 hours, and the light decay in the first 50,000 hours is basically 30%, which is much lower than that of ordinary road lighting sources, and the light is more stable. .

(2) High color rendering: Generally, the color rendering of LEDs is about a few dollars, and if three phosphors are used, it is higher; the general high-pressure sodium lamp is a few dollars, and the low-pressure sodium lamp, so although the brightness of the traditional light source is higher than that of the LED, the LED tunnel light The visual effect of "not the brightest, but the clearest" should be the development direction of LED light source applications.

(3) Lifespan: The lifespan of LED tunnel lights is higher than that of general road tunnel lights.