The UST 45-Day LED Lantern's innovative COB technology maximizes brightness (up to 350 lumens) while running for up to 19 hours on High mode. Powered by three D batteries (not included), the energy efficient lantern's innovative ring technology provides bright, clean 360-degree lighting. The 45-Day LED Lantern has two flicker-free lighting modes - High (350 lumens for up to 19 hours) and Low (20 lumens for up to 45 days). It also includes an amber lighting mode and a candle flicker mode that's perfect for use in tents. Other features include durable, impact-resistant construction, an Integrated, easy grip rubberized handle with a retractable hook for hanging, and IPX4 water resistance (protected against splashing water from all directions). Gender: unisex.