Product Overview
The Streamlight TLR-8 HL-X G sub USB is a compact, high-performance weapon-mounted tactical light designed for precision and reliability. It features a powerful 1000-lumen white light and an integrated green aiming laser, making it suitable for various tactical applications. This model is specifically designed for select 1913 short-railed weapons.
Figure 1: Front view of the Streamlight TLR-8 HL-X G sub tactical flashlight, showing the light and laser module.
Package Contents
Verify that all items are present in the package:
- TLR-8 G HL-X sub USB Weapon Light
- 1x SL-B9 Rechargeable Battery
- USB-C Cable
- Interchangeable High and Low Switches
- Key Kit and Multi-tool
- User Guide (this manual)
Setup and Installation
1. Battery Installation and Charging
The TLR-8 HL-X G sub uses a rechargeable SL-B9 Li-Ion battery. Ensure the battery is fully charged before first use.
- Unscrew the bezel of the light to access the battery compartment.
- Insert the SL-B9 rechargeable battery with the positive (+) end facing towards the light head.
- Securely screw the bezel back on.
- To charge, connect the USB-C cable to the light's USB-C port and to a power source. The charging indicator will show charging status.
Figure 2: The SL-B9 rechargeable battery and the TLR-8 HL-X G sub, illustrating battery type.
2. Mounting to a Weapon Rail
The TLR-8 HL-X G sub is designed for select 1913 short-railed weapons. Use the rail grip clamp system for secure attachment.
- Ensure the firearm is unloaded and safe before handling.
- Loosen the rail clamp screw on the TLR-8 HL-X G sub.
- Align the light with the desired rail slot on your weapon.
- Push the light onto the rail until the crossbar engages with a rail slot.
- Tighten the rail clamp screw firmly by hand. No tools are typically required for initial attachment.
Compatibility Note:
This device is exclusively designed for use with the following 1913 short-railed weapons: Smith & Wesson M&P M2.0 subcompact, Beretta Px4 Storm subcompact, Springfield Armory XD-E, XD-S and Hellcat Pro, Heckler & Koch HK45 compact, and Sig Sauer P365 XMACRO. Verify compatibility before attempting installation.
Figure 3: The TLR-8 HL-X G sub showing its rail mounting mechanism.
3. Changing Rear Paddle Switches
The TLR-8 HL-X G sub comes with interchangeable ambidextrous rear paddle switches (high and low) to suit user preference. Use the provided multi-tool for this operation.
- Using the multi-tool, carefully remove the existing paddle switch.
- Align the desired new paddle switch (high or low) with the slot.
- Press firmly until it clicks into place, ensuring it is securely seated.
Figure 4: Illustration of the high and low paddle switches, demonstrating the interchangeable design.
Operating Instructions
1. Basic Operation (Light and Laser Modes)
The TLR-8 HL-X G sub features three primary modes: LED light only, LED/laser combo, and laser only.
- Momentary Activation: Press and hold either ambidextrous paddle switch. Release to turn off.
- Constant On: Quickly tap either paddle switch. Tap again to turn off.
- Mode Selection: To cycle through modes (Light Only, Light/Laser, Laser Only), press and hold one paddle switch, then quickly tap the other paddle switch. Release both to set the desired mode. The device will remember the last selected mode.
2. Strobe Mode
The strobe mode can be user-enabled for tactical situations.
- To activate strobe, quickly double-tap either paddle switch.
- To deactivate strobe, quickly double-tap again or turn the light off and on.
3. Laser Adjustment (Zeroing)
The integrated green laser can be adjusted for windage and elevation to ensure accuracy. Use the provided multi-tool or a suitable small hex wrench (e.g., 1.3mm hex) for adjustment.
- Identify the windage (horizontal) and elevation (vertical) adjustment screws on the side and bottom of the unit.
- Using the appropriate tool, turn the screws incrementally to adjust the laser point of aim.
- Elevation Adjustment: Turning the screw marked "D/U" (Down/Up) will move the laser vertically.
- Windage Adjustment: Turning the screw marked "R/L" (Right/Left) will move the laser horizontally.
- Perform live-fire zeroing at a safe range to fine-tune the laser's accuracy with your firearm.
Figure 5: Side view of the TLR-8 HL-X G sub, highlighting the laser adjustment screws for windage and elevation.
4. Safe Off Feature
The TLR-8 HL-X G sub includes a "Safe Off" feature to prevent accidental activation and conserve battery life. To engage or disengage, rotate the head of the light approximately 1/4 turn counter-clockwise from the fully tightened position. This will mechanically disconnect the battery circuit.
Maintenance and Care
- Cleaning: Use a soft, damp cloth to clean the exterior of the light. For the lens, use a lens cleaning cloth and solution to avoid scratching. Do not use abrasive cleaners.
- Battery Care: Store the SL-B9 battery in a cool, dry place when not in use. Recharge regularly to maintain optimal performance. Avoid fully depleting the battery for extended periods.
- O-Rings: Periodically inspect the O-rings for wear and tear. Apply a thin coat of silicone grease to maintain water resistance.
- Storage: When storing the light for extended periods, engage the "Safe Off" feature or remove the battery to prevent accidental discharge and battery drain.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Light/Laser does not turn on. | Battery is dead or low. "Safe Off" feature engaged. Battery inserted incorrectly. | Charge the battery. Disengage "Safe Off" by rotating the head. Reinsert battery correctly. |
| Laser cannot be zeroed accurately. | Incorrect tool used for adjustment screws. Screws are too tight. | Ensure you are using the correct small hex wrench (e.g., 1.3mm). Apply gentle, firm pressure. If screws are stuck, contact Streamlight support. |
| Light flickers or dims unexpectedly. | Low battery. Loose battery connection. Dirty contacts. | Recharge battery. Ensure bezel is tightened. Clean battery contacts with a clean cloth. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | 69478 |
| Light Output (White LED) | 1000 Lumens |
| Beam Intensity | 10,000 Candela |
| Beam Distance | 200 Meters |
| Laser Type | Green Aiming Laser (Class 3R, 510-530nm, <5mW output) |
| Run Time (Light Only / Light & Laser) | 30 minutes |
| Run Time (Green Laser Only) | 29 hours |
| Battery Type | 1x SL-B9 Rechargeable Li-Ion (included) |
| Material | Aluminum |
| Color | Black |
| Dimensions (D x W x H) | 2.51" x 1.16" x 1.46" |
| Weight | 2.88 ounces |
| Water Resistance | Water Resistant (IPX4) |
| Mounting Type | Gun Mount (for Select 1913 Rails Only) |
Warranty and Support
The Streamlight TLR-8 HL-X G sub USB is backed by a Limited Lifetime Warranty. This warranty covers defects in material and workmanship for the lifetime of the product, excluding batteries, bulbs, abuse, and normal wear and tear.
For warranty claims, technical support, or further assistance, please visit the official Streamlight website or contact their customer service department. You can also visit the Streamlight Store on Amazon for product information and resources.
