How to fit the proper driving power for the LED light?
General LED lamp series, LED current generally at around 20 mA, the total power consumption of each P light = 220X0.02=4.4 watts. Power is electricity 220V.
1, LED lights with the initial launch, because the price of space is relatively large, light manufacturers are using current consistency, high brightness LED chip, such chips current is: 0.02A;Later, because of the price of the lamp, the market competition is fierce, many lamps manufacturers use LED chips which are not high brightness and the current is not consistent. The current of this kind of LED chip is 0.011A.2, so we to the most commonly used 5050 chip as an example, a bulb to calculate power:A grain of 5050 beads by 3 chip parallel voltage: 3.2V; 3 parallel chip
Light color is different, the working voltage at both ends of each 1.5V is different, such as red yellow and green; each 1.8-2.0V; blue and white each about 3.3V
The LED lamp is the most suitable constant current drive, so it is necessary to determine the flux of your LED, and then determine the power, selecting the appropriate LED beads, determine the current and voltage of the lamp, the combination of series and parallel form beads, can set working current and voltage of LED lamp, can determine the driving power.
