hold the power button on til thelights flash white, it will then go to a red light
hold trigger down and it will cycle through the three lights.
Starting from the top they work like so:
first light = 10
secondlight = 1
third light = .x
example, if you wanted 12.4, first light will flash once, second light will flash twice, third light will flash 4
so hold trigger down, cycles through what it is set at then it will go solid, press power button till you are at the top light, pull trigger once, then power down to second light no pull on trigger equals 0 power button again to thid light, power button again, if it works all three lights will flash green.