What is a Glowstick?
A glowstick is a self-contained, short-term light source that produces light through a chemical reaction known as chemiluminescence. Originally developed for military and emergency use, glowsticks have become essential tools for various recreational activities, particularly in scuba diving. These devices are popular among divers for their ability to provide reliable illumination underwater, where traditional lighting options may be impractical or unsafe. Glowsticks are valued for their simplicity, durability, and the immediate bright light they emit, which can be critical for safety and communication during night dives or in low-visibility conditions.