This LED Lamp is specifically designed for public lighting, featuring high energy conversion and few maintenance costs. Offering instant light, it uses all consumed energy to produce a high level of brightness. Due to its high energy savings, you'll quickly get back your initial investment, with a long working life, a robust design and a high resistance to vibrations. Perfect for public roads, industrial warehouses, workshops, factories, motorway tolls, petrol stations, car parks, supermarkets, etc. *Install in open luminaires. *During installation, it's recommended that excess equipment be removed (Ballasts, starters, etc.)*If these bulbs are installed inside a closed fitting with no air flow, they will not be covered by the warranty.