... corrosion, waterproof, dust-proof performance. 6. Variety installation methods for the lamp, simply installation and operation. Product Show Our ... led chips; trac dimmable, 15° /25°/45°/60°/100°,2 years warranty, suitable for Hotel, Exhibition Hall, Meeting Room, Hospital, Showcase, ... as follows: 1.We have our own independent R & D department, and we will develop new products irregular , otherwise ...