The light arms are made of quality metal alloy material with high flexibility and hardness, allowing them to be positioned and adjusted to the required angle and shape, providing a wide range of multi-angle lighting options. Multiple Power Supply Modes: These reading lights offer multiple power options, including AAA batteries or USB cable connection. When connected to a DC power source via USB, the battery power automatically turns off without removing the batteries. Upon disconnection from the power source, the device switches back to battery power with a simple press of the button. Batteries (three AAA) are not included in the package. Meet Your Multiple Needs: The LED lights on these battery-operated clip-on lamps provide brightness equivalent to 3 standard LED lights. Independent switches on each arm allow for various lighting combinations: one light on a single arm, both arms lit individually, one arm only, or all lights on simultaneously. The design delivers flicker-free, shadow-free, and glare-free illumination ideal for reading, meeting diverse lighting needs. Adjustable Clips: These night lights feature adjustable clips that securely grip objects of varying thicknesses. A rotating component at the base of the clip allows independent movement, increasing clamping range and ensuring a firm hold on different surfaces. Wide Range of Uses: These book lights are ideal for music stands, reading, piano performances, orchestral use, workbenches, computers, knitting, sewing, and crafting. Compact and versatile, they are convenient for travel or nighttime reading. Color: Black Material: ABS + Metal Package Contents: 2 x Music Stand Lamps Note: Light and display differences may cause slight variations between the item color in images and the actual product. Measurement tolerances may apply.