This minimalist designed flexible reading lamp doesn't take up any room. Its bendable goose neck helps you to aim the light directly on your reading pages or working areas. It is great for limited room places like RV boat camper van travel trailer truck, etc. Specifications Material: Metal + Silicone Luminous flux: 185 Lumen Color rendering index(CRI) > 85 CCT: Warm hue LED, 3200K USB output: 5V/2.4A, 9V/ 1.5A, 12V/1.2A Switch: Press dimmer switch Dimension: 2-3/8” W x 16-1/2” H Installation: DC12V or DC24V hard-wired Finish: Metallic Gray / Matte Black Energy efficiency class: A+ Packing List 1 x Goose Neck Light 1 x Mount Hardware Set 1 x Instruction Quick Install Step 1: Use screwdriver to detach the “O” right mount bracket from the lamp base. Step 2: Connect lamp to power supply, lamp red to power positive, black wire to negative. Step 3: Fix bracket on mount place, put lamp base cover bracket, screwing set screw to secure lamp. Notes: Installation hardware included in package.