Lemonbest Modern Vintage Industrial Loft Metal Black Rustic Wall Sconce Light Retro Wall Lamp Support Max 40W power, 100-245V voltage. Shade Size: 21*21*10cm / 8.3*8.3*3.9 inch (L*W*H); Diameter of the Round Base: 5 inch Fit for E27 Edison bulbs; support max. 40 Watts. (Light Bulb is Not included, sold separately: B01IMTK1TK ) Easy to install. Requires drilling to install (necessary accesseries included); No on/off switch, need Hardwired. Simple structure, retro style, best for your house decoration; Accept Return for all non-defective, undamaged products within 30 days of receipt of shippment Suggested Space: bedroom, living room, dining room, foyers, restaurants. If the wall base is small for your electrical box, please contact our seller via e-mail, we will send the update bigger model to you. Giving an opportunity to rectify the situation before the return process or giving a negative review, thank you!