
Ultrafire U5 (2017) review
The Ultrafire U5 (U5) released in 2017. It uses 1 x Cree XP-E LED, no reflector and 1 x 14500 Li-Ion or 1 x AA NiMH battery. The powerful emitter in this flashlight provides up to 300 lm output, 5625 cd intensity, and a beam distance of 150 m.
This light has 2 modes of lighting. This light does not have memory function. It has a strobe function, which is one of the most effective self defense tools available.
Table of contents:
Ultrafire U5 (U5) specifications
- Brand
- Ultrafire
- Name
- U5
- Type
- U5
- Rating
- Launch
- 2017
- Form
- flashlight
Body
The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive finish.
- Weight
- 75 g
- Length
- 105 mm
- Body diameter
- 21 mm
- Head diameter
- 30 mm
- Material
- aluminium alloy with HAIII hard-anodized finish
- Colors
- black
System
The emitter of U5 manufactured by Cree, a US-based LED manufacturing company.
- Emitter
- 1 x Cree XP-E LED
- Color temperature
- 6500 K
- Reflector
- no
- Lens
- convex
- Switch
- mechanical rear
Performance
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.
- Flux
- 300 lm
- Intensity
- 5625 cd
- Throw
- 150 m
- CD/LM factor
- 18.75
Software
The U5 is tactical strobe ready. The strobe light is disorienting to the person it is aimed at which makes it difficult for them to concentrate.
- Modes
- 2 modes
- Mode memory
- no
- Ramping mode
- no
- Strobe
- yes
- SOS/Beacon
- no
Features
The U5 cannot charge batteries directly. You may need an external charger to keep your battery going. A protected battery is recommended as the light itself does not have low voltage protection (LVP). This light does not have temperature control feature.
- Battery
- 1 x 14500 Li-Ion or 1 x AA NiMH battery
- Battery indicator
- no
- Charger port
- no
- LVP
- no
- Thermal regulation
- no
- Protection
- IP65
- AUX LEDs
- no
- Magnetic
- no
- Specials
- zoomable
Accessories
- Package contents
- 3 x spare o-rings
The performance of the Ultrafire U5 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 U5, then don’t hesite and signal the problem to us.
Ultrafire U5 (U5) pictures

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