... Tempered Glass, High Transparency, Impact Resistance. 5. Support for multiple lamps can be cascaded, in order to meet ... . Optimal Working Temperature: -30°C To +45°C7. Life: 50000H8. Dimensions: 550X70X20(mm)This product is made with ... easy installation, strong, solid, waterproof, energy saving, long life. It is suitable for industrial and commercial lighting, home lighting, hospitals, shopping ...