LED Lamp Bead Chip Recognition LED Lamp Beads Brightness Ranking

LED lamp chips are divided into small power LED chips, medium -power LED chips, and year -old power LED chip. The specific size of the LED lamp bead chip depends on the actual production level of the production manufacturer of the different LED lamp bead chip, and there is no specific requirements. As long as the process passes, the LED lamp bead chip can increase the unit output and reduce the cost, and the optical power function will not change the base. The use current of LED lamp chips is actually related to the current density of flowing through the chip. The small use of the chip is low, the chip is high in current, and their unit current density is basically poor. If the use current of the 10mil chip is 20mA, then the 40mil chip can theoretically use the current to increase by 16 times, how to test the LED lamps is 320mA. But the heat dissipation of LED lamp beads is an important issue we consider, so the high -current high -current of the chip is lower than the low -current efficiency of low -current in small chips. In addition, as the area increases, the resistance of the chip will be reduced, so the positive direction voltage will fall. The year -old power LED lamp chip used for white light is generally seen in the market at 40mil. Because the conversion efficiency of light is generally less than 50%, the power of the department of the department will be converted into heat energy, so the heat dissipation of the power LED lamp chip chip is very important.