Features: Without a dimmer, the lamp can also work safely, reliably 6W-20W continuously dimmable instead of traditional three way dimmable 10%-100% of light output can be adjusted with a dimmer Flicker free in any lightness High light output and efficiency Nice looking design Easy installation and setting Specifications: Operating voltage: 110 to 130V or 220 to 240V Frequency: 50/60Hz Average lifetime: 8000 hrs/10000hrs available Optional Color Temperature: 2,700K/4,100K/6,500K Installation: Power off Connect electric wires with power lines and fix to wall with screw bolts Cautions: Please always use a suitable dimmer with the lamp Do not adjust the dimmer rapidly and frequently It is possible that the bulb will be off when the wattage is dimmed below 6W It can be turned on by dimming to higher wattage Applications: Bedrooms, dinning rooms, living rooms, hotels, restaurants etc.