Due to different lighting effects and environments, display brightness settings, etc., the color of the actual item may be slightly different, please refer to the actual item. Regarding the size, please allow a difference of 1-3 cm due to manual measurement, thank you for your understanding! Bulb: service life of 100 000 hours Material: ABS plastic Colour: Black Energy: 2 CR2032 button batteries Waterproof grade: IPX5 life waterproof Size: 8.5 x 4 x 0.9 CM 2-mode switching Suitable for various indoor and outdoor purposes. It is also a good gift for family and friends who like outdoor sports. Feature: Just clip the cap clip lamp to the front of the cap which is very convenient. The clip is very tight it will not drop the hat when running or jumping and it can completely free your hands. Purpose: Outdoor hiking fishing camping night walking night riding night maintenance circuit maintenance lock repair jewelry appreciation etc. can easily use this cap clip lamp. Precautions: -The clip is made of ABS plastic please do not pull it excessively. -Please place the battery correctly according to its positive and negative polarity. If it hurts your eyes do not look directly into the light. After the lamp has not been used for a period of time remove the battery. After-sales service: If you have any comments or suggestions on the product, please feel free to contact us, we will reply you as soon as possible. For more related products, please search "", we will serve you wholeheartedly!