Ultrafire 5L2 (2017) review

5 x Cree XM-L2 LEDs
4000 lm output
22500 cd intensity
3 x 26650 Li-Ion batteries

The Ultrafire 5L2 (5L2) released in 2017. It uses 5 x Cree XM-L2 LEDs, SMO reflector and 3 x 26650 Li-Ion batteries. The powerful emitter in this flashlight provides up to 4000 lm output, 22500 cd intensity, and a beam distance of 300 m.

This light has 3 modes of lighting. The memory function is a nice feature, the light will remember the last used mode. It has a strobe function, which is one of the most effective self defense tools available.

Table of contents:

Ultrafire 5L2 (5L2) specifications

Rated 4/5 based on 1007 user votes.


The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive finish.

Weight499 g
Length305 mm
Body diameter38 mm
Head diameter60 mm
Materialaluminium alloy with HAIII hard-anodized finish


The emitter of 5L2 manufactured by Cree, a US-based LED manufacturing company. The 5L2 has a smooth reflector. The properly focused smooth reflector gives you a more cohesive hotspot and therefore throws better. It has an AR coated lens.

Emitter5 x Cree XM-L2 LEDs
Color temperature6500 K
LensAR coated glass
Switchmechanical rear


The throw is the calculated distance in meters at which the flashlight produces a light intensity of 0.25 lux. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam. Well-focused spot beams can be over 100 cd/lm, tactical flashlights are typically between 20-100 cd/lm, and work lights are less than 10 cd/lm.

Flux4000 lm
Intensity22500 cd
Throw300 m
CD/LM factor5.63


The 5L2 has mode memory. Mode memory means that the light will remember the mode you were using when the light was last turned off, and when you turn it on again. The 5L2 is tactical strobe ready. The strobe light is disorienting to the person it is aimed at which makes it difficult for them to concentrate. It has the SOS beacon function for an emergency situation. The SOS flashes Morse code so you can signal for help when needed.

Modes3 modes
Mode memoryyes
Ramping modeno


The 5L2 cannot charge batteries directly. You may need an external charger to keep your battery going. This flashlight has a built-in low voltage protection (LVP) to prevent damage to the cell from over-discharge, so protected cells are not necessary. This light does not have temperature control feature.

Battery3 x 26650 Li-Ion batteries
Battery indicatorno
Charger portno
Thermal regulationno
Impact resistance1 m

The performance of the Ultrafire 5L2 flashlight is measured according to the ANSI / NEMA FL1 Standard 30 seconds after switching the light on. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.

The specifications above are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Ultrafire 5L2, then don’t hesite and signal the problem to us.

Ultrafire 5L2 (5L2) pictures

Ultrafire 5L2 / 5L2 photo Ultrafire 5L2 / 5L2 photo Ultrafire 5L2 / 5L2 photo Ultrafire 5L2 / 5L2 photo Ultrafire 5L2 / 5L2 photo
Ultrafire 5L2 / 5L2

Ultrafire 5L2 (5L2) comparisons

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