The X21 has been discontinued and replaced by the new 1600 lumen LED Lenser X21.2.
The X21 is truly a spotlight in your hand. It produces a powerful 1100 lumens of lighting (or stopping) power, making it one of the brightest flashlights on the market. There are seven ultra-bright, high-performance LED chips that make even car headlights look dull in comparison. The X21 offers a broad circular beam as well as a sharply-focused searchlight beam that reaches up to 1500 feet. The LED Lenser X21 flashlights is one of those true feats of engineering and design that you have to hold to appreciate its impressive power and authority.
Functions: On/Off, Advanced SLT™ (8 functions for brightness control, strobe & more)
Lumens: 1100 / 250 (max/min)
Beam Distance: 500m / 240m
Battery Life: 2.5hr / 25hr
Water Resistance: IPX4 (splash resistant)
Battery: 4 x D-cell
Length: 15.55 in | 39.5 cm
Weight: 52.49 oz | 1488 g