This gives you the maximum brightness output in its class and maximum beam distance.
1) Turbo boost technology is activated every time you turn on at turbo output setting. It offers 20% more power to the LED for the first 200 seconds at turbo mode.
2) ANSI FL-1 is the total overall light output being emitted from the flashlight. This measurement is generally more accurate as it takes into consideration the loss from reflector/lens/bezel. EAGTAC ANSI FL-1 Lumen output is measured using a calibrated integrated sphere three minute after turning on the flashlight.
Upgraded LED driver
D25 clicky eries use the A400RC III driver and A950RC III driver. Both feature high efficiency, clicky and twist head operation, programmable 0.5 lumen moonlight mode, optional mode memory (D25C only), added auxiliary modes (i.e. disorientated strobe, fast SOS), and most importantly dimmable feature with single li-ion.
Both limited Ti edition include a rigid holster w/retention device.
Operations: (Basic) Press on the switch button until it clicks to switch on. Press the switch again for off. Access output groups 1 & 2 by tighten or loosen the head. Slightly press the switch to switch between different outputs. (Advance) 1) Moonlight output - dim or increase the entire output range of the group 1 output. Toggle this setting starting with head loosens, turn on the light, and then repeat tight and loose for three times. 2) Mode memory - remebers the last output in group 1. To toggle this setting, with head tighten, turn on the light, and repeat loose and tight for three times.