What Makes These 1000-Lumen Streamlight Flashlights Different? Streamlight HL-X vs TLR-RM2.

Published on November 11, 2022
Duration: 9:00

This video explores the performance differences between two Streamlight weapon lights, the HL-X and TLR-RM2, despite their similar lumen ratings. It highlights that lumens alone don't dictate performance, introducing Candela and Lux as critical metrics. The experiment uses a 50-yard range and a light meter to measure beam spread and intensity, revealing significant variations in how each light performs downrange and over time.

Quick Summary

Weapon light performance is best understood by considering lumens, Candela, and Lux. Lumens indicate total output, Candela measures beam intensity (spotlight), and Lux is the brightness on target. Testing revealed the Streamlight HL-X (higher Candela) had a concentrated beam, while the TLR-RM2 (lower Candela) offered a more even floodlight pattern.

Chapters

  1. 00:00Introduction: Choosing a Weapon Light
  2. 00:14Key Light Metrics: Lumens, Candela, Runtime
  3. 00:30Experiment Setup: 50-Yard Range Test
  4. 01:31Streamlight HL-X vs TLR-RM2: Initial Specs
  5. 03:16Understanding Lumens, Candela, and Lux
  6. 04:54Streamlight HL-X Performance Test
  7. 06:22Streamlight TLR-RM2 Performance Test
  8. 07:07Candela vs. Floodlight/Spotlight Comparison
  9. 07:34Dropping Intensity and Future Questions

Frequently Asked Questions

What are the key metrics for evaluating weapon light performance beyond lumens?

Beyond lumens, which indicate total light output, Candela measures beam intensity (spotlight capability), and Lux measures the actual brightness on a target. These metrics help determine a light's effectiveness for different scenarios, like identifying targets at a distance or illuminating a wider area.

How do the Streamlight HL-X and TLR-RM2 differ in beam pattern?

The Streamlight HL-X, with higher Candela, produced a more concentrated beam with a distinct hotspot. The TLR-RM2, with lower Candela, showed a flatter, more evenly distributed beam, making it more of a floodlight compared to the HL-X's spotlight characteristics.

Can weapon light performance degrade over time?

Yes, testing showed that Lux readings on both the HL-X and TLR-RM2 declined over just 10-12 minutes of use. This suggests that battery life and consistent output are important factors to consider beyond initial specifications.

What is the difference between lumens and Candela for weapon lights?

Lumens represent the total amount of light a source emits, while Candela measures the intensity of that light in a specific direction. A higher Candela rating generally indicates a more focused beam with greater 'throw,' suitable for spotting targets at a distance.

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