Use these YakGlo lights to ensure you're visibile to others, plus see what you've been missing during nighttime adventures. An innovative mounting system makes YakGlo lights easy to install on most sit-on-top kayaks. Simply put the threaded post through the scupper hole and tighten. Lights features super bright LEDs in a waterproof, corrosion-resistant construction. Lights provide 12-15 hours of illumination. Includes GoPro compatible mount.