Time:2022-09-01 Views:0
First of all, we need to understand the components that make up LED lamps: 1. Lamp housing 2. Light source chip 3. Drive power supply
There is no need to say anything about the lamp housing. Generally, there are plastic and metal. The explosion-proof lamps are basically made of metal. The explosion-proof LED lamp housings produced by our company are all cast aluminum with explosion-proof tempered glass lenses.
What are the factors that determine the life of LED lighting fixtures?
The main difference between imported chips and domestic chips is in light efficiency, but the gap is not big. Domestic chips can be made with a light efficiency of 120 lumens/watt. The imported chips with the same display index and the same size can be made 130 lumens/watt. watt. High is not obvious, this is only the light efficiency of the lamp beads, if it is made into a light strip, the driving efficiency and the light transmission efficiency of the light strip should be taken into account, and finally their luminous efficacy has a difference of 3%. However, the price of domestically produced products can be several times lower than that of imported products.
The LED industry has a life certification called LM80, which needs to be tested at three temperatures, 55℃, 85℃, and the third temperature is optional. 6000 hours of continuous point at 100 degrees temperature, and the brightness drop cannot exceed 5%. It is considered that the lamp bead can reduce the brightness by no more than 30% within 33,000 hours.
A slightly larger domestic manufacturer can pass this certification. 33,000 hours, 5 hours a day, 6,000 days, almost 20 years. It is enough, and the driver is less than 20 years old, so as long as the life of the LED lamp bead is a lamp made by a regular manufacturer according to the regular standard, you don't have to worry about its life of any chip.
Where is the strength of imported chips? Strong in some places that ordinary people can't use, or some special lighting.
For example, CREE, most high-end flashlights and mobile light sources use CREE lamp beads. Why? He has high light efficiency, and his chip can withstand large currents, so using CREE as a flashlight to achieve the same brightness, with the same battery, he can resist for a while. This is very important for the flashlight, the battery life. Therefore, mobile light sources such as flashlights are the world of CREE.