Review: Streamlight ProTac 2L-X

The StreamLight ProTac 2L-X is a medium-sized, tactical flashlight that generates a 500 lumen (6,800 candela) beam. It can use either two CR123 batteries or a 18650 rechargeable battery. The 2L-X is 5.14″ long and could easily be carried in a holster. The 2L-X is a bit larger than most EDC flashlights and it is near the upper limit of what I would use as an easily concealable EDC flashlight. It uses the standard Streamlight programming with High/Strobe/Low and also offers the TEN Tap programming to switch it to High only or Low/High only.

Features include:

  • Beam: 500 lumens at 6,800 candela with 165m beam
  • Runtime: 2.75 hours from two CR123s or 3.25 hours from 18650
  • Construction: Machined from aircraft grade aluminum, mild strike bezel on both head/tail, tight/smooth threads, O-ring for water sealing.
  • Size/Weight: 5.14″ long, 3.9 oz w/CR123 batteries, 4.4 oz w/18650 battery
  • Batteries: Two CR123s or one 18650 rechargeable battery
  • Waterproof: IPX68 dust/waterproof — waterproof to 2 meters for 30 minutes.
  • Durability: Withstands 2-meter drop.
  • Price: About $50.
  • Features: High/strobe/low by default and Ten-Tap Programming for High only and low/high.
  • Beam Pattern: 46″ x 6″ at 3′ (Beam Scale)

It is a larger, high-powered, tactical flashlight, that uses duel fuel (two CR123s or one 18650 battery), has high/strobe/low modes, and the body is machined from aircraft aluminum. The 2L-X is larger than the ProTac 2L but is still small enough to be used as an EDC light. The length allows the flashlight to be a good tactical choice for those with very large hands.


The 2L-X would be a good choice for a larger everyday carry (EDC) flashlight.

  • High beam of 500 lumens with up to 3.25 hour run time
  • Low beam of 40 lumens with 30-hour battery life
  • Aluminum construction with tactical bezels on the front and back
  • Larger but still concealable
  • Large enough to extend across the palm of those who have large hands


  • No low battery indicator: This light will work fine until the batteries get low and then it will stop working with very little warning. If you needed to light in a tactical situation and the batteries were low you may have a completely non-working light.
  • The light does not tail-stand easily. While this is a disadvantage if you want to tail-stand the light it means that the button is easier to press use to less material on the back of the light.

These are minor disadvantages and should NOT dissuade you from purchasing this light.


My favorite Everyday Carry (EDC) is still the ProTac 1L-1AA but the 2L-X is a good choice due to its size and brightness. Also consider the ProTac 2L-X flashlight. The 2L is a bit smaller, generates a 350-lumen beam, and uses two CR-123 batteries.