The Zebralight H502D headlamp has a maximum output of 190 lumens from the Philips LUZEON T Neutral White LED. The light has a nominal CCT of 5000K, providing a warm white beam tint; the higher the Kelvin (K), the cooler the beam temperature. The light is powered by a single, widely available AA (alkaline, NiMH or lithium) battery.

Zebralight has long been known for producing the best 'pure flood' single AA headlamps available. Building on this heritage, the LED offers improved colour rendition with a wide area beam pattern.

In addition to the three main levels of High, Mid and Low, the H502D features a beacon and strobe mode. Each main level can be programmed to one of its two sub-levels. The second sub-level of each main levels can be further programmed to different brightness levels.

One short click on the head torch turns on the light to High and again to switch it off; two short-click turns on the light to Mid and three short-click turns on the light to the special modes. Press and hold the switch (for over 0.6 seconds) to cycle through Low, then Mid and High, simply releasing at the desired level.

For more advance operation and configuration, press and hold to cycle from Low to Mid to High, and release at the desired level to set. Double click the switch to toggle and select between the two sub-levels for that main level. Sub-level selections for the 3 main levels are memorised after the light is turned off and through battery changes.

The second sub-level (H2, M2 and L2) of each main levels can be further programmed to different brightness levels. At a main level, double-click 6 times to start configuration. On subsequent double-clicks the light will cycle through different brightness levels. When a configuration is finished, short click to turn off the light. The selections for the second sub-levels are memorized after the light is turned off and through battery changes.

Brightness Levels:
High: H1 190 lumens - 0.9 hrs runtime or H2 117 lumens - 1.9 hrs runtime / 73 lumens - 3.3 hrs runtime
Mid: M1 36 lumens - 7.5 hrs runtime or M2 18 lumens - 12 hrs runtime / 9 lumens - 27 hrs runtime
Low: L1 2 lumens - 96 hrs runtime or L2 0.25 lumens - 3 weeks / 0.04 lumens - 2 months runtime / 0.01 lumens - 3 months runtime

Plus Beacon Strobe mode: 4 Hz Strobe at H1 / 19 Hz Strobe at H1

Waterproof to IPX-7.

Includes: pocket clip, headband, spare o-rings, 1 x AA (alkaline) battery.