Features: Energy saving high output]: 5 x 500W energy saving R7s J118 halogen bulbs. These are the new regulation halogen energy saving J118 bulbs, using 500W of light and saving 30% energy. Dimmable halogen bulb]: The instant light is fully dimmable, highly stable and flicker-free. Standard double ended R7s base, just screw the bulb into the R7s socket in seconds, no tools required. Long life]: This halogen bulb can work for 2000 hours, plug and play. The lamp is made of quartzite, sturdy and explosion-proof; the filament is made of high quality tungsten iodine filament. Stable lamp construction to reduce vibration. Wide range of applications: r7s bulb 118mm LED dimmable bulb, often used for floodlights, office, home, shop. Work and security lights, showroom, stage and studio lights, floor lights, landscape lights etc.