Matching calculation and power supply with power LED strip is very familiar for city lighting engineering. following we will talk about the process of strip project plan. calculate the number of LED strip lamps for the project. It should be noted that the LED lights can be divided into three groups cut using. 60 per meter LED lights with LED’s in each length of 50mm,30 per meter LED lights with LED’s in each length of 100mm . Understand this then you can calculate the actual number of LED lights need. The general reserve length of about one meter is good. so as to avoid excessive waste.Because the buy LED lights is not distributing power, so we need to calculate the required power supply. then matching power supply. Power LED lights with different so for the power matching to carefully choose.for example if the purchase is 5050LED lights, matched power is 12V, the 4A by specification, then a power supply can only take 6 meters 5050LED lights.Because 5050LED lights per meter power is 7.2W, a total of 6 meters of 43.2W, while the power supply rated power is 48W, is generally not recommended to use the power of full load, because that power of life for a great impact, suggest to use only the power of 95%. If I need the 100 metres, the 4A power corresponding to be equipped with at least 16pcs.

LED lights with controller: for RGB lights bring that effect must be equipped with a controller only, for the led strip must be equipped with the controller to have effect, but a controller can control the LED lights with lengths from 5 meters to 20 m range, which one is selected as controller specifications.Thus, in the purchase of RGB lamp belt, also need according to control length controller in addition to controller, or purchase another RGB amplifier (each amplifier can be extended to 5 meters) Do not mistakenly think that a controller can achieve the control requirements for all RGB lights, this is the wrong point of view. For example, the purchase of 100 meters of RGB lights, while the controller selects a conventional controller, which controls the scope of each controller is 5 meters kind. Then 100 meters of RGB lights need to be equipped with the RGB controller 20 pcs, or buy an RGB controller, buy another 19pcs amplifier