... degree4. Brightness degradation:3%-5%/kh5. Products are compact of aluminum material.6. Superior thermal performance, high applicability7. ... used in store, house, hotel, office, display window, exhibition ,halls and other commercial lighting. Our service:1.Your inquiry will ... in fluent English3.The service of OEM&ODM4.Protection of your sales area, ideas of design and all your private information5.The ...