There is a controller, and then 220V AC, controller output 220V dc. The number of LED lights varies from one string to another. How do you calculate the power of each LED?.LED lights flash, that is, sometimes bright, sometimes not bright. Is it power consumption or power consumption when light is shining?.For example, a circle outside the marquee, bright 2 seconds off 1.
If you want to measure accurately, you can follow the following methods:1. Use multimeter to measure the actual output voltage of controller V, the actual working current of each string is A, then the actual power consumption of each string is P=V*A. The marquee still is converted by the above conditions, the proportion of.2, with power meter (such as power monitoring, smart sockets, etc., about 100 yuan, online search), connected to the controller front-end, practical testing AC power consumption.It needs to be explained that the power consumption measured at the end of the controller (that is, DC), and the efficiency of the controller, usually 80%, then the total power consumption = the power consumption /0.8.
Take a look at your LED light box controller power is how big, generally a single LED lamp power points color is different, the size is not the same, but all in between 0.04~0.06W. Therefore, in order to calculate how many lights can be carried, it is only necessary to divide the total power of the controller by the power of a single LED. However, because the voltage divider is also used in the actual operation, the power of the voltage divider is also taken into account. Normally, the total power of the power station of the LED lamp is about 80%, so the calculation method is:Controller rated power /0.06*0.8= maximum load LED lamp quantity. Hope to be helpful to you...
If it is an estimate, the following methods can be used:1, each string of current by 20mA, then each string of power consumption of about 220V*0.02A=4.4W.2, the number of the number of each string of Led beads, or calculated by the average number of white and blue LEDs, each power consumption is about 3V*0.02A=0.06W; each of the red, green and yellow lamp power consumption is about 1.7V*0.02A=0.035W, and then multiplied by the total number of beads.3, according to the proportion of working on the marquee conversion, every 3 seconds on a second, namely power *1/3 full light, if the light power is 4.4W, the actual power consumption of =4.4W*1/3=1.5W.
