... Features: 1. Aluminum shell cover, an excellent heat dissipation material. 2. High efficiency, easy intallation, and maintenance free. 3 ... more than or equal to 90%. 4. Excellent colour display with Colour Rendering Index(CRI) as high as 90 ... : Office, Hospital, School, Factory, Hotel, Shopping Mall, Supermarket, Display Cabinet, Backdrop, and Household lighting. Note: 1. When installation, try ...