Easy to install: The clip-on headlight is easy to operate, just clip it to the edge of your hat/cap/pocket with a sturdy buckle, you can flexibly adjust the light, 90-degree rotating design for a better viewing angle; and you also The hat lamp can be easily worn on your belt, completely freeing your hands and allowing you to focus on your work design: The LED hat light measures approximately 2.16 x 1.97 x 1.11 inches and weighs less than an ounce, you 't feel any burden when you clip it on your hat, it's convenient and practical to use, it's a good helper in life Meet your needs: A total of 10 hat brim lights are included in the package, which is enough for your daily use and replacement. You can also share it with colleagues for use Waterproof and Durable: These hat clip LED headlights are made of plastic material, sturdy and waterproof, not easy to break, can you for a long time; , will not add extra burden to your head Super Bright: Each LED light head has 11 bright LED bulbs, providing up to 400 lumens of brightness to illuminate your dark environment; it also features a one-touch power button for /off operation, powered by 3 Powered by AAA batteries (not included in the package), the Head Light Lamp is easy to replace; plus, this clip-on Head Light Lamp is brighter and lasts longer, lasting up to 24 hours Colour:black Material:plastic Size:Length: about 9cm Package Contents: 10 x Hat light clip Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.