LED light module with general resistance is mainly based on the LED lamp beads with the voltage and current to set. Now lamp beads used mainly piranhas lamp beads 5050 and 3528 SMD LED module and beads. They are basically the same voltage, Xi'an led display white, blue, green is 3.0V-3.4V Dalian led display, red and yellow are 1.8V-2.4V. With resistance when in the middle of selecting lamp beads voltage value to buy Chengdu led display, if bought voltage lamp beads labeled 3.0-3.2V, select voltage of 3.1V. Followed by the current, generally piranhas SMD LED lamp beads and bead current common is 20MA, but also a little better chip lamp beads can be done 25 to 30MA led display, brightness will be better, but it will affect certain procedure light failure, because it is three chip 5050 SMD parallel package, which the current is 60MA. LED module light emitting diode is arranged according to certain rules and then package them together, add some water treatment product is composed of LED modules. LED product LED module is broad product applications, there are also significant differences in structure and electronics, simplest is equipped with an LED circuit board and the housing has become an LED module, a complex on plus some control, constant current source and the associated heat treatment and the luminous intensity of the LED life better. Dalian led display | Gao Jin photovoltaic (certified) | led display provided by Jinan Optoelectronics Technology Co., Ltd. Gao Jin. Jinan Gao Jin Optoelectronics Technology Co., Ltd. (www.gjlled.cn) is an industry leader in Jinan, Shandong, liquid crystal devices, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Gao Jin photoelectric leadership with the staff warmly welcome all inquiries negotiations to create high gold Photoelectric better future.