High (540 Lumens), Medium (275 Lumens), Low (55 Lumens), Red (10 Lumens), and Red SOS flashing modes
"The Siege Lantern features five C4 power LEDs, four white and one red with five output modes and a battery level indicator built into the on/off button. With the outer lantern globe in place, the light will float. Use the lantern with or without the outer globe cover. Remove the outer globe and hang the body upside down by the D ring for large area lighting needs. Battery replacement is a breeze with the center post orienting the battery cover correctly every time. "