g_series th

Ultra high efficiency circuit design

The C2100 Extreme circuit dominate the output competition with its ultimate power management ability and proven stability.

Reliability that you can count on

The C2100 extreme circuit survives the toughest torture environment including: 1) repeatedly over-night burn-in test, 2) over input voltage test, 3) over-driven output current test, and 4) high temperature oven test.

We reserved a lot of head room when designing this circuit. This makes the C2100 extreme circuit one of the top performer and rock stable circuit in its class.

Excellent runtime and flat regulation

G25C2 runs for 200 hours on its lowest brightness level. The current regulated circuit design allows constant output throughout its runtime for all output levels without PWM-flicking.

At highest brightness level, G25C2 current regulates for 1.1 hours using two EagleTac CR123A batteries. With two 18650 (using 4 cells body extender) you get about 3 hours of runtime on high (2.5 hours with energy saving feature turned off).

The current regulation control method allows the just right of amount of current going through the LED. This results in constant brightness output regardless of battery type, LED variation, and temperature change.