This warning light features a bright strobe light that greatly improves reaction time compatible oncoming motorists and reduces the risk of cars behind you hitting you, improving driving safety. By using wiring-free installation, this warning light supports USB charging, with seven variable colors, multiple modes and memory functions. It is constructed of ABS material. The length of the product is 6 cm, the width is 4 cm, the height is 2 cm. It universally fits on any motorcycles. Item Name: Warning Light Material: ABS Features: Super Bright, Energy Saving, Compact Power: 5W Voltage: 5V Current: 0.2A Battery: 3.7V, 90mAh(Included) Size Details: 6cm x 4cm x 2cm/2.36" x 1.57" x 0.79" (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 Warning Light 1 x User Manual 1 x Charging Cable 2 x Rubber Ring