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Description
The Streamlight SL-20L is a full-size rechargeable aluminium duty torch for law enforcement, fire and utility crews needing 450 lumens and a 529 m beam.
The SL-20L is a full-size professional duty light with a machined aircraft-grade aluminium case and a Type II anodised finish. At 33.3 cm it gives the reach and grip of a traditional full-size torch.
Three regulated levels run from 450 lumens with a 529 m beam down to 60 lumens for 20 hours, and a strobe runs 4.5 hours.
Power comes from a 5-cell, 6.0 volt, 2.6 Ahr Ni-MH sub-C battery that is rechargeable up to 1,000 times, and this version is the 12V DC charging configuration.
Key features
- Long-range beam — High mode delivers 450 lumens and 70,000 candela for a 529 m beam, for down-range identification.
- Three levels plus strobe — High, medium and low let the user match output to the task, with 225 lumens at medium, 60 lumens for 20 hours at low and a 4.5 hour strobe.
- Rechargeable Ni-MH pack — The 6.0 volt, 2.6 Ahr Ni-MH sub-C battery is rechargeable up to 1,000 times for daily shift use.
- Charge status at a glance — The illuminated switch housing is steady while charging and blinks when charging is complete, and the battery fully recharges within 9 hours.
- Aluminium case — The machined aircraft-grade aluminium case with Type II anodised finish is tested to 1 m impact resistance.
- Sealed polycarbonate lens — An O-ring sealed unbreakable polycarbonate lens with scratch-resistant coating pairs with an IPX4 water-resistant design.
- 12V DC version — This item is the 12V DC configuration, charging from a vehicle supply.
Typical applications
- Night-time patrol and roadside vehicle checks where a tight, far-reaching beam is wanted.
- Fire and rescue crews who want a full-size light ready at the start of every shift.
- Utility and industrial inspection of plant rooms, ducts and underground spaces.
- Security patrols of large sites, yards and perimeters after dark.
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 |
| Charging | Illuminated switch housing indicates charge status; steady for charging and blinking for charging complete |
| Charge time | 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 | 1 m impact resistance tested |
| Length | 33.3 cm (13.1 in) |
| Diameter | 6.35 cm (2.50 in) major diameter |
| Weight | 0.77 kg (1.7 lbs) with battery |
In the box
- 1 × SL-20L - 12V DC
Model information
| Brand | Streamlight |
| Model | SL-20L - 12V DC |
| MPN | 20702 |



