Usage Tips:Specifications: 400W, Dimmable, AC 220-240V, 7500lm, warm white 2800K, 118mm r7s linear halogen bulb.Dimmable: This 400W J118 Dimmable R7s Energy Saving Halogen Pencil Spotlight is dimmable, Intensity variable from 5%-, compatible with halogen dimmer.High Quality: 2000 hours lifespan, save more than 30% electricity, Stable, comfort, safety, strength.Warm White 2800K: Warm White 2800K, 7500lm with 360illumination angle gives you a brighter, more comfortable environment.Large Applications: Use for advertising lighting, landscape, hotel facade, workshop, parking lot, clothing stores and other occasions. Perfectly suitable for home, store and office spotlights, work and safety lights, showroom, stage and studio lights, floor lamps, etc.