Simply judge the quality of led lamps
What are the easiest ways to judge the quality of LED lights?
Do not buy outrageous products with low prices, regardless of the seller's reasons. Because the low price is not enough even the cost, how can there be a guarantee of quality? Ask customers more about product power factors, conversion efficiency, light source chips, and power supply protection functions. If you want to buy a good product, please don't lower the price too much.
The actual power of the lamp is compared with the power of the light source. For example, the actual power of a 3*1W LED spotlight is between 3.8W-4.3W. If the actual power is much larger than this standard, it means there is a problem and the conversion efficiency is too low. Light it for one to three hours to test the temperature of the lamp housing (remember not to hold it with your hands, just touch it lightly), the temperature cannot exceed about 70 degrees (the international standard for LED lamps is that the temperature difference cannot exceed 40 degrees). Listen to the sound of the LED lighting in a silent environment. If you can clearly hear the sound of the lamp working, it means that the power supply of the lamp is not very good.
After identifying the light source, cover the spotlight lens with a piece of A4 printing paper, and then slowly move away to observe the color of the light. (Do not look directly at the lamp, so as not to cause the strong light to damage your eyes) The light emitted by a good light source is clear, thorough and uniform, but if it is poor, it appears very mixed, or it is easy to see that the colors of several light sources are different. Wait evenly. Whether the newly purchased LED lamps are good or not, they will be switched on and off quickly and repeatedly after installation. If you can't hear the sound of the LED light when it is working, and will not turn off at the same time, then this LED light is fairly stable.
