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Description
The SL-20L is a full-size rechargeable aluminium duty torch for police, industrial and emergency users who need a tight, long-reaching beam.
Machined from aircraft-grade aluminium with a Type II anodised finish, the SL-20L puts out 450 lumens and a 529 m beam from a 6.0 volt Ni-MH pack. This version is the 240 V AC/12 V DC (NiMH) configuration.
Four settings cover both search and close work: high, medium and low, with run times of 3.25, 5 and 20 hours, plus a strobe that runs 4.5 hours.
An O-ring sealed polycarbonate lens, IPX4 water-resistant construction and 1 m impact resistance testing suit it to daily outdoor and industrial service.
Key features
- Long-range high beam — High delivers 450 lumens at 70,000 candela and reaches 529 m down range.
- Three output levels — Medium gives 225 lumens for 5 hours and low 60 lumens for 20 hours, so output can be matched to the task.
- Strobe setting — A strobe setting runs 4.5 hours for signalling and scene marking.
- Rechargeable Ni-MH pack — The 5-cell, 6.0 volt, 2.6 Ahr Ni-MH sub-C battery is rechargeable up to 1,000 times.
- 240 V AC/12 V DC version — This part number is the 240 V AC/12 V DC (NiMH) configuration for mains and vehicle use.
- Machined aluminium body — The body is machined aircraft-grade aluminium with a Type II anodised finish.
- Sealed polycarbonate lens — An O-ring sealed, unbreakable polycarbonate lens with a scratch-resistant coating protects the optic.
- Weather and impact tested — The light is IPX4 water-resistant and tested to 1 m impact resistance.
Typical applications
- Night-time patrol and perimeter checks where a tight, far-reaching beam is needed.
- Incident and accident scenes calling for both signalling and area illumination.
- Industrial and utility inspection work in plant rooms, substations and tunnels.
- Search and rescue tasks in poor visibility.
Technical specifications
| Light output, High | 450 lumens / 70,000 candela / 529 m beam distance / 3.25 hrs |
| Light output, Medium | 225 lumens / 35,000 candela / 374 m beam distance / 5 hrs |
| Light output, Low | 60 lumens / 9,000 candela / 189 m beam distance / 20 hrs |
| Light output, 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 |
| Battery capacity | 2.6 Ahr |
| 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) |
| Weight | 0.77 kg (1.7 lbs) with battery |
In the box
- 1 × SL-20L - 240V AC/12V DC (NiMH)
Model information
| Brand | Streamlight |
| Model | SL-20L - 240V AC/12V DC (NiMH) |
| MPN | 20706 |



