SL-20L features 3 power levels. Up to 350 Lumens on High, 160 Lumens on Medium and 10 Lumens on Low. Deep dish parabolic reflector produces a tight beam, C-4 technology, Illumniated Switch housing indicates charge status. Machined aircraft allumnium construction with annodized finish. Comes with 2 charging sleeves and NiCd battery.