Each LED light features 5 SMD LEDs on the PCBA board for bright illumination; 3 different colors for various purposes 1 red and 1 green for port and starboard sides, plus 2 spare lights; 7 lighting modes including steady, flash, and strobe. IPX5 water-resistant housing makes it suitable for outdoor use; ideal for boats, pontoons, kayaks, bicycles, dog collars, strollers, running, and more. [Warning: Do not submerge in water] Easy to install and built for durability. LED lights come with back clips for quick attachment to flat straps; includes elastic straps to secure around poles, pipes, bike frames, arms, or legs for night running and other activities. Package includes 3 standard 7-inch straps and 1 extra-long 12.3-inch adjustable elastic arm strap that expands up to 25 inches. High wear resistance and long-lasting durability. Color: As shown Material: ABS Package Contents: 6 x Tail Lights Note: Light reflection and display differences may cause slight color variation from the actual product. Measurement allowance is +/- 1-3 cm.