Specification: Base: G9 Material: Ceramic Body & Silicon Wire Wire Length: 180mm Lampholder Thickness: 21mm Lamp Diameter: 18mm High Temperature Resistant Applications: Halogen lamp, ceiling light, spotlight, G9 / 220V / 40W high voltage lamp and more Package Includes: 10pcs of Bonlux G9 Light Bulb Socket Holders CAUTION: - This product is not intended for use with emergency exit lights or fixtures. Not for use with photocell, timers, remote radio frequency switches unless they are made for LED lamps. Risk of electrical shocks. Use in dry location only - No Ballast is Required. Please remove/bypass the ballast from the fixture when installing this product. The result of using the ballast will make your LED bulb flickering or get damaged.