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Description
A full-size rechargeable aluminium duty torch delivering 450 lumens and a 529 m beam for professional users who need long-range light on shift.
The SL-20L is a full-size professional duty light with a machined aluminium body and a rechargeable Ni-MH battery pack. On high it gives 450 lumens, 70,000 candela and a 529 m beam with a run time of 3.25 hours.
Medium and low levels give 225 and 60 lumens for 5 and 20 hours respectively, and the strobe runs for 4.5 hours. The 5-cell, 6.0 volt, 2.6 Ahr pack recharges up to 1,000 times and is fully recharged within 9 hours, while the illuminated switch housing shows charge status.
This version is supplied as the 120V/100V AC and 12V DC configuration with 2 sleeves.
Key features
- Long-range beam — On high the beam reaches 529 m at 70,000 candela for down-range identification.
- Four output modes — High, medium and low levels of 450, 225 and 60 lumens are backed by a strobe that runs for 4.5 hours.
- Rechargeable Ni-MH pack — The 5-cell, 6.0 volt, 2.6 Ahr sub-C battery is rechargeable up to 1,000 times.
- Charge status indication — The illuminated switch housing stays steady while charging and blinks when charging is complete, with the pack fully recharged within 9 hours.
- Machined aluminium body — The case is machined aircraft-grade aluminium with a Type II anodised finish.
- Sealed polycarbonate lens — An O-ring sealed unbreakable polycarbonate lens carries a scratch-resistant coating.
- Water and impact resistance — The torch is IPX4 water-resistant and impact resistance tested to 1 m.
- Full-size duty format — At 33.3 cm long and 0.77 kg with battery it is a full-size light for belt or vehicle carry.
Typical applications
- Police and security patrol work where a full-size duty torch is carried on the belt or kept in the vehicle.
- Fire and rescue searching of large, dark spaces such as warehouses, plant rooms and stairwells.
- Utility and industrial night maintenance, where long down-range visibility is needed.
- Roadside assistance and vehicle recovery in poor light.
Technical specifications
| Light output | High: 450 lumens / 70,000 candela / 529 m beam distance / 3.25 hrs Medium: 225 lumens / 35,000 candela / 374 m beam distance / 5 hrs Low: 60 lumens / 9,000 candela / 189 m beam distance / 20 hrs Strobe: 4.5 hours run time |
| Battery | 5-cell, 6.0 volt, 2.6 Ahr Ni-MH sub-C battery, rechargeable up to 1,000 times |
| Charging | Illuminated switch housing indicates charge status; steady for charging and blinking for charging complete |
| Charge time | Fully recharges within 9 hours |
| Body | Machined aircraft-grade aluminum with Type II anodized finish |
| Lens | O-ring sealed unbreakable polycarbonate lens with scratch-resistant coating |
| Ingress protection | IPX4 water-resistant |
| Impact resistance | 1m impact resistance tested |
| Length | 33.3 cm (13.1 in) |
| Diameter | 6.35 cm (2.50 in) major, 3.81 cm (1.50 in) body |
| Weight | 0.77 kg (1.7 lbs) with battery |
In the box
- 1 × SL-20L - 120V/100V AC/12V DC - 2 Sleeves
- 2 × Sleeves
Model information
| Brand | Streamlight |
| Model | SL-20L - 120V/100V AC/12V DC - 2 Sleeves |
| MPN | 20703 |



