Aero Snail 1621S-18 Silver Vintage Retro Industrial Theme Metal Large Pendant Hanging Light Ceiling Lamp Chandelier 18 Lights Chrome Finish (Arm Wires PRE-Connected) EASY TO ASSEMBLE. The arms all come PRE-WIRED. You simply need to screw in each of the arms into the center ball. Thread the main wire through the extension rods, then install the fixture into a ceiling box. Save time, Save Money!!! Voltage: 110V-120V;Suggested Room Fit: 20-30?O Kitchen, Dining Room, Bedroom, Living Room, Garage, Hallway, Game Room, Entry, Study Room/Office Fixture Dimensions: H12" x W28" x L28",The max. length of vertical rod is 27.5 inches,the minimum length15 inches. It's adjustable. Bulb NOT Included: 18 x E26 x Max 60W per Bulb KEY Points: For this light with our brand Aero Snail, we use a extender inside of the main vertical rod, so you can adjust the hanging height as per your request. Note other brands, there is only a main vertical rod, which is fixed length, can not be adjustable.