Bright, versatile lighting The LED lights attached to the battery operated clipon unit are as bright as three standard LEDs. The dualarm switches support four configurations: one arm on, both arms on, two lights on a single arm, or all lights on both arms. There is no flicker, shadow, or glare, making it suitable for reading. Flexible, durable arms The arms are made from a quality metal alloy, offering both flexibility and rigidity. They can be positioned in any direction and adjusted to the desired angle and shape, providing a wide range of lighting options. Power options and battery info The clipon lights support AAA batteries or USB power. When plugged into a DC power source, the unit uses the external supply and battery power is automatically cut off without removing the batteries. When unplugged, it switches to battery power; to resume battery power, press the switch. The package does not include batteries (requires three AAA batteries). Adjustable clips The clips can grip items of varying thickness. A small part on the clip tail can rotate independently, increasing the clamping range and enabling secure clamping on items. Use scenarios Reading in bed at night Studying or working at a desk Clipping onto books, notebooks, or craft projects