Full-color LED unit board color temperature adjustable LED drive circuit design in order to stabilize the output light intensity, color temperature, and to achieve light intensity, color temperature adjustment, a kind of indoor full color LED unit board drive circuit diagram shown in Figure 4 , in which the use of the corresponding PWM control are provided with blue, green and red filters light intensity detector constituting full-color LED module board three kinds of LED light intensity monitor and control through the AVR microcontroller, change duty cycle signal, stable blue, green, red 3 LED light intensity, to stabilize the full-color LED unit board of light intensity and color temperature, wherein each LED driver circuits are used as the drive control chip LT3474. In practical design, SoB design uses smaller driver IC solutions led module effect, can make the whole LED light particle distribution more flexible, because the driver IC will not be bulky gear to LED arrangement design, It can be avoided because the driver IC Barrier practical benefit SoB light type arrangement, in addition to the driver IC volume should be noted, the fact that the size of passive components is focus. Although the use of double-sided PCB material may be concentrated on one side of the light-emitting component material, the drive IC / passive components focused on the other side of the material led module, but in fact for automated production more simple, fast, cost reduction practices many will use the material on one side Jinan led module, make the process more convenient, so LED light-emitting component layout on the need to avoid driving IC / passive components, or use a small piece of material designed fabric. Beijing led the photovoltaic module _ Gao Jin (certified) _led module 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.