Usage Tips:ENERGY SAVING HIGH EFFICIENCY: 120W. Tension: 220V, 230V, 240V. Average household energy costs are 13.5 bollards per year EXCELLENT AND SAFE LIGHTING: eco-halogen. 360 omnidirectional beam angle. 2700K warm white, CRI 100, mercury free.MANY LIGHTING APPLICATIONS: Often used as spotlights for home, shop and office, work and security lights, showrooms, stage and studio lights, floor lamps, landscape lights, etc. Guide to buying suitable light bulbs: Base, shape and dimensions Base: Double Ended R7s Shape: T3 Type J J78 Diameter: 9.5 mm (0.38 inch) Length: 78mm (3.125 inch) Please make sure the double ended bulb base matches what your light fixture Please check your bulb length is 78mm (3.125 inch) ), because there is a longer version with a length of 118mm (4.65) which looks like the photo. Please check these specifications before ordering. Lighting characteristics Power: 120Watts Voltage: 220V, 230V, 240V AC Beam angle: 360 Material: Glass Color Rendering Index (CRI): 100 for vivid and enhanced colors Instant On. No mercury. Shelf life: 2000 hours (1.8 years with an average of 3 hours use per day) CE and RoHS certified Pack of 4 < p > Use of halogen dimmers These halogen bulbs are dimmable using the dimmers designed for both incandescent and halogen bulbs. All incandescent and halogen bulbs are dimmable using traditional dimmers, because these dimmers simply adjust the voltage level for dimming.