Features:_x000D_Material: The shell of our lamp holder is made of quality PBT material, heat-proof aging, good insulating, durable and sturdy_x000D_E27 to E27. The socket type is E27, so it is compatible with standard light bulb E27_x000D_Allowing 4 or 3 bulbs installed in one single socket at the same time, easy to increase lighting intensitys_x000D_A must-have for anybody who needs to convert a dull gloomy place into a place shining with light brightness_x000D_Application: Suitable for using with fluorescent bulbs in photography, home or other places_x000D_ _x000D_Notice:_x000D_1.Actual color may be slightly different from the image due to different light effect_x000D_2.Please allow 1-3cm deviation due to manual measurement_x000D_ Base Type: Standard E27 Base_x000D_Color: White_x000D_Shell Material: PBT_x000D_Type: 3 in 1_x000D_Nominal Voltage: 110V-240V_x000D_Wattage Of Each Socket: 60W_x000D_Heatproof temperature: 120 C_x000D_3 in 1 Type Socket Size:_x000D_Each Socket Diameter: Approx. 3.8cm / 1.5inch_x000D_Total Height: Approx. 9.4cm / 3.7inch_x000D_4 in 1 Type Socket Size:_x000D_Each Socket Diameter: Approx. 3.8cm / 1.5inch_x000D_Total Height: Approx. 10.2cm / 4inchPackage List:_x000D_1x 3 In 1 E27 To E27 Base Light Lamp Bulb Adapter