4 in 1 LAM White Light Comparison

Published on January 4, 2026
Duration: 14:33

This guide details a comparative analysis of white light output from several 4-in-1 Laser Aiming Modules (LAMs), including IR and visible lasers. Expert instructor Kyle utilizes a lux meter and field testing at various distances to objectively assess performance, battery types, and illumination characteristics. The analysis highlights the strengths and weaknesses of units from Holosun, SMS, Laserspeed, and others, providing valuable data for tactical gear selection.

Quick Summary

Expert instructor Kyle compares 4-in-1 LAM white light output using a lux meter and field tests. The Holosun IRIS-GR4 showed the most candela among tested 4-in-1 units, rivaling dedicated lights, while the Inforce ARC demonstrated extreme range capability. Battery types and laser adjustment differences were also analyzed.

Chapters

  1. 00:00Introduction to 4-in-1 LAMs
  2. 01:51Power Sources & Laser Adjustments
  3. 03:43Lux Value Data Comparison
  4. 04:43Field Testing: RovyVon GL4 Pro
  5. 06:05Laserspeed Commander & M6TRV Performance
  6. 07:53Holosun IRIS-GR4 & LE321G Performance
  7. 09:46SMS HFXC & Inforce ARC Performance

Frequently Asked Questions

What are the key components of a 4-in-1 Laser Aiming Module (LAM)?

A 4-in-1 LAM typically integrates four essential functions into a single unit: an infrared (IR) illuminator for night vision, an IR laser for aiming, a visible laser (often red or green) for daytime use, and a visible white light for general illumination or target identification.

How is the white light output of tactical lights objectively measured?

Objective measurement of white light output is commonly performed using a lux meter placed at a standardized distance, typically one meter from the light source. This provides a quantifiable 'lux value' that allows for direct comparison between different lights and models.

Which 4-in-1 LAM units showed the highest white light performance in the test?

In the comparison, the Holosun IRIS-GR4 demonstrated superior candela output among the 4-in-1 units tested, rivaling dedicated rifle lights. The Inforce ARC also served as a high-power baseline, capable of illuminating targets at extreme ranges (up to 500 yards).

What are the common battery types used in 4-in-1 LAMs?

The most common battery type for 4-in-1 LAMs has traditionally been the CR123 disposable lithium battery. However, newer models are increasingly adopting rechargeable lithium-ion cells, such as the 18650 and 18500 formats, offering potential advantages in runtime and sustainability.

More Tactical & Gear Videos You Might Like

More from 4MR Ranch

View all →