4 lighting modes:

  • High for a tight, far-reaching beam: 150 lumens; 12,900 candela; 227m beam distance; runs 3.5 hours
  • Low for when less light is ideal and for longer run times; 55 lumens; 4,300 candela; runs 12 hours
  • Moonlight for low-level lighting and extended run times - runs 20 days
  • Flash for signaling - runs 8 hours
  • Optimized electronics provide regulated intensity


  • Uses rechargeable NiCd battery pack (fits existing Knucklehead chargers); also accepts four “AA” alkaline batteries
  • Rubber dome push-button switch is easy to operate even when wearing heavy gloves
  • High-impact, super-tough nylon polymer construction for exceptional durability; available in orange (with clip)
  • Full 360 degree rotation head with 210 degrees of articulation
  • Removable magnet with 135 lb pull strength
  • IPX4 water-resistant
  • All openings o-ring sealed
  • 2 meter impact resistance tested
  • Serialized for positive identification

Dimensions: 9.2 in. (23.4 cm); NiCd 23.1 oz (655 grams); Alkaline 18.3 oz (519 grams)

Charger (not included) meets requirements of NFPA 1901- (2003) mounted in any position

Material/Lens: Housing, base and battery housing made from high impact super tough nylon offering exceptional durability. All openings are O-ring sealed for weather resistance. Circular rare-earth magnet surrounded by durable nickel-plated steel housing. One-way valve for case venting; Unbreakable polycarbonate with silicone anti-scratch coating assembled in a heavy-duty bezel. O-ring sealed.

Light Source: One C4® LED, impervious to shock with a 50,000 hour lifetime.

Switch: Sonic welded push button switch designed for extremely long life. Rubber dome push button actuator provides easy operation even when wearing heavy gloves.

Battery: Industrial rechargeable nickel-cadmium 4.8 volt, 1.8 amp hour, 4 cell sub-C can be recharged up to 1,000 times. Optional four “AA” alkaline non-rechargeable battery pack provides fast replacement with readily available batteries.

Charging: AC and DC one-hour fast chargers with full charge indicators designed specifically for AC or DC power sources. The universal Steady Charger, which requires up to 10 hours for a complete charge using AC or 12V DC charge cord. Optional PiggyBack® charger allows for simultaneously charging of the Knucklehead and a spare battery so you always have a light when you need it.

Approvals: Class I & II Division 1, Groups C,D,F,G; Class III; T-Code: T4; Exia;

Streamlight Knucklehead Rechargeable LED Worklight


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