Mode Groups: 1- Moonlight, 5%, 15%, 35%, 50%, 100% 2- Moonlight, 5%, 15%, 35%, 100% 3- Moonlight, 15%, 35%, 100% 4- 5%, 15%, 35%, 50%, 100% 5- 5%, 15%, 35%, 100% 6- 5%, 35%, 100% 7- 15%, 35%, 50%, 100% 8- 15%, 50%, 100% 9- 15%, 100% 10- 50% Configuration Options: To enter configuration mode, quickly cycle the switch 10+ times until it starts to flash. Once it starts to flash, you are in configuration mode. Once in configuration mode, the light will give a solid light and ramp down, if you want to modify options 2-3 cycle switch during ramp to move to next option. Option 1 Mode group: when light ramps down it will step down and then the group number will blink followed by another step down. To select the group blinked cycle the switch in the step down cycle after the group you want to use. Option 2 Memory on/off: when light ramps down it will flash low power and then high power. Cycle switch while flashing low if you want memory off and high if you want memory on. Option 3 Strobe: when light ramps down it will flash 3 different power levels, cycle switch while flashing low if you want strobe off, medium for bicycle mode and high for strobe mode. To access these in normal use cycle switch three times rapidly and it will access either strobe programmed when turned on.