1. Housing: Aluminium material with good heat conduction,surface-nickelized treatment 2. Working Temperature:-10 +40 3. Life Time:40,000hours (brightness maintenance rate 70%) 4. Weight: 46g 5. Package Info:Ctn size: 63*28*36cm, 240pcs/ctn, Gross Weight: 14KG/ctn. 6. As a replacement of traditional halogen lamp, it can match with halogen transformer without any problem.It can be widely used for indoor lighting, such as hotel, restaurant, home lighting,etc.