UST UST 30-Day Lantern7 1 2" high. Gray and orange impact and weather resistant rubberized ABS plastic casing. LED bulbs never burn out. Four modes: High lumen: up to 300 lumen output, visibility: up to 23m, runtime: up to 32h; Medium lumen: up to 150 lumen output, visibility: up to 16m, runtime: up to 3. 5 days; Low lumen: up to 29 lumen output, visibility: up to 7m, runtime: up to 30 days; Strobe runtime: up to 15 days. Green LED indicator flashes when off to show