Last Updated on May 27, 2025
The Streamlight Protac HL-X is a compact, high-performance tactical flashlight designed for professionals and everyday users who demand durability, brightness, and versatility. Whether you’re in law enforcement, military, security, or an outdoor enthusiast, the HL-X delivers powerful illumination with programmable lighting modes, rugged construction, and multiple battery compatibility.
If you’re wondering how to program Streamlight Protac HL-X, you’re not alone. This popular tactical flashlight from Streamlight is known for its high lumen output, durable build, and customizable TEN-TAP® programming feature. Whether you’re a law enforcement officer, outdoors enthusiast, or everyday user, learning how to set your preferred lighting mode can make a big difference in performance and convenience.
The Streamlight Protac HL-X offers three programmable modes via the TEN-TAP® feature—High/Strobe/Low, High Only, and Low/High. Customizing these settings allows you to tailor the flashlight’s output to your specific needs, whether that’s self-defense, night patrol, or casual carry.
In this guide, we’ll walk you step-by-step through the simple process of programming your HL-X in just a few seconds.
In this complete guide, you’ll learn:
- How to change modes on the Streamlight Protac HL-X
- How to save a preferred mode using Ten-Tap Programming
- How to install and replace CR123 or 18650 batteries
- Frequently asked questions about runtime, waterproof rating, and weapon compatibility
Let’s dive in!
How to Program Streamlight Protac HL-X: A Quick Setup Guide
Wondering how to program Streamlight Protac HL-X for your specific needs? This powerful tactical flashlight offers multiple modes that can be easily customized using TEN-TAP® programming. Whether you prefer high/strobe/low or just high-only, setting it up is simple and takes less than a minute.
Streamlight Protac HL-X Flashlight Modes & Programming
The Protac HL-X comes with three primary lighting modes that serve different use cases:
- High Mode: For maximum brightness and visibility
- Strobe Mode: Used for signaling or disorienting threats
- Low Mode: For longer runtime and less aggressive lighting
These modes are programmable using Streamlight’s patented Ten-Tap Programming system, giving users full control over their flashlight’s behavior.
How to Change Modes on Streamlight Protac HL-X
High Mode
To activate high mode:
- Tap and hold the tail switch to power on in high brightness.
- After turning on, press again to turn off the light.
This mode outputs up to 1000 lumens, ideal for search operations, nighttime patrol, or emergency lighting.
Strobe Mode
To activate strobe mode:
- Double-tap the tail switch within 0.4 seconds.
- Tap once again to turn it off.
This mode is effective for self-defense or emergency signaling, as the rapid flashing disorients threats and draws attention.
Low Mode
To activate low mode:
- Triple-tap the switch in 0.4-second intervals.
- Then use a single press to turn it on or off.
Low mode produces 60 lumens, suitable for reading maps, navigating campsites, or indoor use where subtle lighting is preferred.
Ten-Tap Programming: Customize Your HL-X Experience
One of the standout features of the HL-X is its programmability. The Ten-Tap Programming system allows users to set their preferred sequence of lighting modes.
Programming Options:
- High / Strobe / Low (Default)
- High Only
- Low / High
How to Program:
- Quickly tap the tail switch 10 times.
- On the 10th press, hold the button down.
- The flashlight will blink to confirm the new mode setting.
You can repeat this process anytime to cycle between the three programming options. The system remembers your last saved mode, even after replacing the batteries.
✅ Example Use Case: If you’re hiking or hunting at night and want to avoid startling animals, you might prefer the Low/High mode combination for a subtler light profile.
How to Install or Replace CR123 or 18650 Batteries in the HL-X
The Protac HL-X supports dual power sources:
- Two CR123 or CR123A lithium batteries
- One 18650 rechargeable battery
Step-by-Step Battery Installation:
1. Remove the Tail Cap
- Hold the flashlight firmly.
- Twist the tail cap counterclockwise to detach it.
2. Take Out the Old Battery
- Tilt the flashlight downward.
- The old battery (or batteries) will slide out easily.
3. Insert New Batteries
- Insert two CR123/CR123A batteries with positive (+) ends facing the head of the flashlight.
- Or use one 18650 rechargeable battery (Streamlight recommended).
4. Reattach the Tail Cap
- Align the threads and turn the tail cap clockwise until it’s secure.
5. Test the Flashlight
- Press the switch to ensure the flashlight powers on and cycles through modes properly.
🔋 Battery Tip: The 18650 battery offers rechargeability and cost savings, while CR123s are great for backup use due to long shelf life.
Lumens, Runtime & Output Performance
| Mode | Brightness (Lumens) | Runtime |
|---|---|---|
| High | 1000 lumens | 1 hour 15 minutes |
| Low | 60 lumens | 20 hours |
| Strobe | 1000 lumens | 2.5 hours |
With beam distance over 300 meters, the HL-X is powerful enough for tactical search, while the long-lasting low mode is perfect for preserving battery during extended use.
Frequently Asked Questions (FAQs)
What is the lumen output of the Streamlight Protac HL-X?
The HL-X flashlight produces 1000 lumens in high mode and 60 lumens in low mode. The strobe also runs at 1000 lumens.
Which batteries are compatible with the HL-X?
The HL-X uses either:
- Two CR123 or CR123A lithium batteries, or
- One 18650 rechargeable battery (recommended for cost-effectiveness)
Is the HL-X waterproof?
Yes, it has an IPX7 waterproof rating, allowing it to withstand submersion up to 1 meter for 30 minutes.
Can I mount the Protac HL-X on a weapon?
Absolutely. The HL-X is weapon-mountable and compatible with Picatinny rail systems. A remote pressure switch is available for hands-free control.
How do I reset the flashlight to its default mode?
To reset, perform the Ten-Tap Programming until you cycle back to the High/Strobe/Low default sequence. The flashlight will blink to confirm.
Final Verdict: Why Buy the Streamlight Protac HL-X?
This Streamlight Protac HL-X review confirms that it’s one of the most versatile, programmable, and high-performing tactical flashlights in its price range.
Now that you know how to program Streamlight Protac HL-X, customizing your flashlight is quick and stress-free. Whether you prefer high-only output for maximum brightness or want strobe mode enabled for emergencies, this flexibility is what makes the HL-X stand out.
Take a moment to try each setting and find what works best for your needs—you’ll appreciate the control every time you power it on.
Whether you’re in law enforcement, the military, or just need a reliable EDC flashlight, the HL-X delivers in every aspect:
- ✅ 1000-lumen brightness
- ✅ Customizable modes via Ten-Tap
- ✅ Dual power source compatibility
- ✅ Weapon-mountable and waterproof
It’s a smart investment for anyone serious about tactical lighting or outdoor safety.