Streamlight
Streamlight ProTac 2.0 Rail Mount
2,000-lumen USB-C rechargeable weapon light with broad flood and SL-B50 battery system.
Quick Specs
- Price
- $169
- Weight
- 9.1 oz
- Brand
- Streamlight
- Category
- light
Features
- •2,000 lumens
- •17,700 candela
- •SL-B50 USB-C rechargeable
- •IP67 rated
- •System kit includes pressure switch
Capability Boosts
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Streamlight ProTac 2.0 Rail Mount Weapon Light, Black, 89009
Streamlight ProTac Rail Mount 2.0 Weapon Light with Remote Switch for Picatinny Rail Black
Streamlight Protac 2.0 Rail Mount Weaponlight Rechargeable, 2000 Lumens - 89009
Price History
90-day low $169.14 · at low nowCompatibility Tags
Overview
The Streamlight ProTac 2.0 Rail Mount is Streamlight's answer to the premium weapon light segment, delivering 2,000 lumens with a broad flood beam at around $200. It addresses several pain points from older ProTac long-gun lights: the SL-B50 battery can charge by USB-C inside or outside the light, IP67 dust and water sealing applies with the tailcap installed, and the 2,000-lumen output on high puts it ahead of many lights in this price range on raw flood.
The 17,700 candela rating means the beam profile is intentionally broad. This is a room-filling light designed for indoor use and engagements under 75 yards. Past that distance, the lower candela limits positive target identification compared to throw-oriented lights like the Cloud REIN 3.0 or SureFire Turbo. For home defense, the ProTac 2.0's flood advantage is an asset, not a limitation.
Streamlight sells light-only and system versions. The system kit includes a pressure switch, remote-retaining clips, tape, zip ties, and M-LOK mount. At $200, it delivers a lot of close-range light for the money, but it is larger and heavier than the ProTac HL-X and relies on the proprietary SL-B50 rechargeable battery rather than CR123A backup cells.
Key Features
- 2,000 lumens with broad flood beam for CQB and home defense
- 17,700 candela with 266-meter rated beam distance
- SL-B50 USB-C rechargeable pack charges inside or outside the light
- IP67 dust-tight and waterproof to 1m for 30 minutes
- TEN-TAP programmable modes
- Available as light-only or system kit with pressure switch and M-LOK mount
Pros
- +Highest lumen count in its price range for maximum flood
- +SL-B50 battery can charge by USB-C inside or outside the light
- +IP67 sealing exceeds many premium competitors
- +System kit includes switch-management hardware and M-LOK mount
- +Half the price of SureFire and Cloud Defensive equivalents
Cons
- −Low candela (17,700) limits throw past 75 yards
- −9.06 oz weight is heavy for a carbine light
- −SL-B50 battery system has no CR123A backup option
- −Pressure switch quality still below SureFire/Cloud standards
- −No high/low mode without TEN-TAP reprogramming
Detailed Specifications
- Lumens
- 2,000 lumens
- Candela
- 17,700 candela
- Beam Distance
- 266 meters
- Runtime
- 2.5 hours high / 11 hours low
- Battery Type
- One SL-B50 USB-C rechargeable battery pack
- Length
- 6.30 inches
- weight
- 9.06 oz with SL-B50 battery pack
- Mount Type
- Picatinny/M-LOK (includes both mounts)
- Waterproof Rating
- IP67
- Material
- 6000 series aluminum, anodized
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