Streamlight ProTac 2.0 LED Headlamp with SL-B50 Rechargeable Battery - Durable Aluminum Black

The Streamlight ProTac 2.0 LED headlamp with SL-B50 rechargeable battery is a serious work light built for hunters, search and rescue, tactical operators, and anyone who needs both power and runtime in a hands-free package. At 2000 lumens on high, it delivers the reach and intensity to scan terrain or work site clearly—with a 241-meter beam distance—without draining the battery in minutes. The included SL-B50 Li-Ion pack charges via USB-C, either inside or outside the headlamp, so you're never stuck waiting for gear to be disassembled to top up power.

Build quality is where Streamlight earns its reputation. The body is 6000-series aircraft aluminum with Type II MIL-Spec anodize—that's the finish you'll find on mil-spec rifles and professional-grade tools. It's rated IP64, meaning dust-tight and water-resistant to 2 meters, and it's been impact-tested from 2 meters, so a headlamp bounce off rock won't wreck your mission. At under 10.5 ounces with battery, it won't fatigue your neck on a long hunt or overnight operation.

The TEN-TAP programming system gives you three selectable modes: high/medium/low, high-only, or low/high. Run time scales with output—25 hours on low (110 lumens), 4.5 hours on medium (650 lumens), or 2.25 hours at full power. That flexibility is key: you can stretch battery life on survey or casual camp work, then flip to full output when you need it. The included elastic and rubber headstraps keep the light stable and comfortable during extended use, and the package includes the USB-C charging cord.

Key Features

• 2000 lumens on high with 241-meter beam distance for long-range visibility
• TEN-TAP programming with three user-selectable output modes
• SL-B50 protected Li-Ion rechargeable battery with USB-C charging (charges in or out of the light)
• 6000-series aluminum body with Type II MIL-Spec anodized finish for durability
• IP64 rating: dust-tight and water-resistant to 2 meters; 2-meter impact-tested
• Up to 25 hours runtime on low output (110 lumens)
• Elastic and rubber headstraps included for secure, comfortable hands-free operation

Specifications

Frequently Asked Questions

What battery does the ProTac 2.0 headlamp use?

It uses one Streamlight SL-B50 protected Li-Ion USB-rechargeable battery pack, which is included in the box. The battery charges via USB-C cord, either while installed in the headlamp or removed separately.

Can I adjust the brightness or switch between different output modes?

Yes. The headlamp features TEN-TAP programming with three user-selectable modes: high/medium/low, high-only, or low/high. This lets you customize the light behavior to match your mission—run longer runtimes on low for routine tasks, or switch to high when you need maximum reach and intensity.

Is this headlamp waterproof? Can I use it in wet conditions?

The ProTac 2.0 is IP64-rated, meaning it's dust-tight and water-resistant to 2 meters. It's not fully submersible, but it will handle rain, splashing, and humid environments. It's also been impact-tested from 2 meters, so it can take reasonable bumps in the field.

What comes in the box with the headlamp?

You get the ProTac 2.0 headlamp, the SL-B50 rechargeable battery pack, a USB-C charging cord, and elastic and rubber headstraps for hands-free wear.