Usage Tips:Long life and bright beam: the clip hair lamp is made of ABS material, with 2 CR2032 batteries, 1 high brightness, LED, long life and bright beam Simple and useful: just put on the hat, simple and useful, strong clips stay in place, easy to remove, if necessary. Multi-purpose for various purposes, such as night fishing, reading, household appliance maintenance, etc Clip-on design: The clip on reading lamp is clip-on design, usually you can attach it to glass sides or hat for ultimate comfort Free setting in the direction The lamp can be rotated 360 degrees and you can freely adjust with regard to the lighting angle. On the bead side there is a humanized convex photocell that blocks the light from the eyes Portable and light: approx. 4 x 2.2 x 3 cm. Mini in size and compact appearance, portable, lightweight and easy to carry Wide range of application: - It is suitable to wear on your head or attach your hat. - Multifunctional for various purposes, such as night fishing, reading, home appliance maintenance, etc. - It can be a manual if you take the cycle at night. Features: 1. Mini size and compact in appearance, lightweight and easy to carry. 2. Clip-on design, as a rule, you can put it on glass sides or hat edge for ultimate comfort clip and relax your hands. 3. The lamp is rotatable 360 degrees and you can freely adjust the lighting. 4. On the bead side is a humanized convex light barrier that blocks the light from affecting your eyes. 5. The ABS shell is hard and solid, durable for daily use. Specifications: Material: ABS plastic Colour: black. Light source: LED 1 x LED pearls. Quantity:1 pair. Power: CR2032 * 2 Size: approx. 4 x 2.2 x 3 cm. Approximate weight. 31g. Box contents: 1 x pair of glasses clip light.