The UST Marine Brand of SEE-ME LED RESCUE LIGHTS uses State-of-the-Art electronics that include a microprocessor to maximize brightness and function for the longest burn times possible. Lifetime LED bulbs are unbreakable and never burn out. See-Me Water-Activated Emergency Locator Lights and Strobes feature a faceted octagonal design that is easy to grip and use in wet conditions. Shatterproof and fungus-resistant globe and body make the See-Me light and strobe extremely tough and durable. Brightness and run time are microprocessor controlled to maximize visibility