The chandelier size after bulb installation: 72 x 27 cm (28.35 x 10.63 in). Lamp holder size: 12 cm (4.72 in). Industrial chandeliers are ideal for rooms measuring 15-25 square meters. Note: Ceiling lights do not include bulbs. DIY Sputnik Chandelier: The connecting rod of the Sputnik light fixture for installing the bulb can be rotated 180 degrees horizontally, so you can find your favorite shape. Applicable Bulbs (not included): E27 x 4 (40W Max), standard bulbs, compatible with bulbs that fit the E27 base. When you need to change the bulb, simply unscrew the bulb, replace it with your favorite bulb, and you're done. Wide Application: CE certified, E27 ceramic base, safe to use. We use satin brass and black hardware to add a high-end touch to each fixture. These metal colors and finishes complement a variety of mid-century modern decor. Easy Installation: All arms are pre-wired and pre-threaded for easy installation. The remaining wires and arms are gently screwed into the center