Product Description 1. Working Temperature: -40° -80° 2. Protect level: IP 68 3. Life span: Up to 100, 000 hours 4. Usually choice materials of 3, 4, 5 mm, we can provide you with a variety of flat bliater, three-dimensional blister, special shaped blister, in particular, a unified chain signs for image. Over the years we as China Petroleum, China Petrochemical, jiayuan Hotel, Agricultural Bank of China, China Mobile, China Unicom and other well-known brand products to provide identification.