uxcell 4Pack 20M Wireless Remote Control Light Lamp E27 Holder Socket Switch Product Name : E27 Lamp Bulb Holderw Remote Control;Model : BSDE-DT4K;Fit For : E27 Screw Light Material : Metal, Plastic;Adapter Size : 6.7 x 10cm/2.6" x 3.9"(D*H);Remote Control Size : 9.5 x 4 x 1.7cm/3.7" x 1.6" x 0.67"(L*W*H) Power By : 23A 12V Battery (Not Included Here);Color : White, Black, Silver Tone Bulb Power : 50W(Energy Saving Lamp/LED, No Overloading Use);Remote Control Distance : &gt;20M Weight : 370g;Package Content : 4 x Lamp Bulb E27 Screw Holder1 x Remote Controller