This bicycle warning light has small size and light weight, so you can carry it conveniently without increasing the riding load. Premium LED lamp beads enables this bicycle warning light to achieve high brightness light to warn others to ensure your riding safety at night. Made of high quality ABS material, this product is lightweight and durable to use. The length of the product is 3cm, the width is 2cm, and the height is 1.45cm. It is suitable compatible bicycle, drone, motorcycle modification. The red light means charging, and off means fully charged. Item Name: Strobe light Material: ABS Battery: Built-in 90mAh Rechargeable Battery (Included) Features: High Brightness, Long Battery Life, Multifunctional Size Details: 3cm x 2cm x 1.45cm/1.18" x 0.79" x 0.57" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Strobe Light