... supply: Unique switch and constant current source technology to ensure the stable working of each LED. 3. Lens: Optical lens, ... , coefficient of heat conductivity≥ 2.0W/mk5. Lighting source: The imported 1W, 3W as a light source, long life-span ... About 5-30 meters, especially good for the landscape building body, outdoor plaza, landscape materials and the effection of wall decoration. 8. Color ...