Features: Input Voltage: AC110V/ AC220VBody Material: AluminumLED delicate source/Quantity (pcs): LED cob chipLumens (lm): 100-110 lm/WWorking Temp.: -25 ℃ - +50 ℃ Color Rendering Index: Ra >93Beam Angle:36° (default) Size:2 inch 5W 7W, Hole size: 55mm2 inch 9W 12W 15W, Hole size: 75mm3 inch 18W 21W, Hole size: 95mm Color temperature: Warm White: 3000-3500K Natural White: 4000-4500K Cold White: 6000-6500KDimmable:Dimmable means that the brightness of the light could be adjusted, and it should be adjusted through the dimming knob switch. Notice:If you need a lightweight bulb with honeycomb please go away us a message. By default we ship light bulbs without honeycomb. The role of the honeycomb is for greater anti-glare.