ShenZhen Guanke Tech Co.,Ltd established in 2006,is a national level high-tech enterprise integrating high-power LED lamp beads and LED application .The company has powerful development team and advanced detecting instruments , and is one of the most professional manufacturers of LED light sources and LED lighting in China .The products are widely used for roadway lighting ,architectural lighting, industry lighting,residential lighting ,and so on ,all over the world ,and all meet CCC ...