- LED lights It is a semiconductor diode with a long service life. When the luminous flux drops to 80%, its service life reaches 50,000 hours.
The service life of metal halide lamps is 6000~12000 hours, and the service life of high pressure sodium lamps is 12000 hours.
- The basic structure of the LED lights is an electroluminescent semiconductor material, which is placed on a rack with leads, and then sealed with epoxy resin to protect the inner core wire. LED has good shock resistance.
- The light color of white LED is better than that of high pressure sodium lamp. At the level of mesopic vision, the human eye is more likely to distinguish things in a high color temperature environment than a low color temperature environment.
The color rendering of LEDs is also much better than that of high-pressure sodium lamps. The color rendering index of high-pressure sodium lamps is only about 20, while white LEDs can reach 65-80.
4.LED can realize more perfect dimming function. LED lights have a large operating range and their light output is proportional to the operating current, so dimming can reduce the current.
In addition, since the frequent switching of the LED lights is not damaged, the LED pulse width adjustment can also be obtained by adjusting the duty ratio of the voltage and the operating frequency to adjust the LED luminous intensity.
- In the optical system of the lamp, the luminous flux loss of the LED light source is the smallest. Unlike traditional light sources, LEDs are light sources that emit light in half space.
High-pressure sodium lamps or metal halide lamps are light sources that emit light in all spaces, and it is necessary to change the 180° direction of the outgoing light from one half of the space to enter the other half of the space.
When we rely on the reflector to complete, the absorption of light by the reflector and the blocking of the light source itself are inevitable.
As a light source, there is no loss in this respect, and the light utilization rate is higher than that of traditional light sources. Unlike high-pressure sodium or metal halide lamps, LEDs do not contain harmful metal mercury, which can be harmful to the environment when scrapped.