The light source is a Nichia 519A 4000K LED. The light ships with a rechargeable, flat top, unprotected 10440 Li-ion battery that produces max 500 lumens. This is also the recommended battery for the light, but it also works with AAA battery that produces max 90 lumens.
Full click to turn on or off, half click to cycle between modes.
Spec
Size 15 × 89 mm
Material Titanium
Weight 32 g
Output Max 500 lumens
Battery Rechargeable 10440 Li-ion, flat top, unprotected (included)
Light source Nichia 519A 4000K LED
Pocket clip Deep carry
*Click for the programming guide.