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Nitecore EF1 (2017) review

2017
Cree XM-L2 U3 LED
830 lm output
18300 cd intensity
1 x 18650 Li-Ion battery

The Nitecore EF1 (EF1) released in 2017. It uses Cree XM-L2 U3 LED, SMO reflector and 1 x 18650 Li-Ion battery. The powerful emitter in this flashlight provides up to 830 lm output, 18300 cd intensity, and a beam distance of 271 m.

This light has 3 modes of lighting. This light does not have memory function.

Table of contents:

Nitecore EF1 (EF1) specifications

Brand
Nitecore
Name
EF1
Type
EF1
Rating
Rated 3/5 based on 133 user votes.
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Launch
2017
Form
flashlight

Body

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

Weight
250 g
Length
152.2 mm
Body diameter
32 mm
Head diameter
40 mm
Material
aluminium alloy with HAIII hard-anodized finish
Colors
black

System

The emitter of EF1 manufactured by Cree, a US-based LED manufacturing company. The EF1 has a smooth reflector. The properly focused smooth reflector gives you a more cohesive hotspot and therefore throws better.

Emitter
Cree XM-L2 U3 LED
Color temperature
6500 K
Reflector
SMO
Lens
10 mm epoxy resin explosion-suppressive
Switch
electronic side

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
830 lm
Intensity
18300 cd
Throw
271 m
CD/LM factor
22.05

Software

Modes
3 modes
Mode memory
no
Ramping mode
no
Strobe
no
SOS/Beacon
no

Features

The EF1 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. The built-in thermal control automatically adjusts brightness output to prevent overheating.

Battery
1 x 18650 Li-Ion battery
Battery indicator
no
Charger port
no
LVP
yes
Thermal regulation
yes
Protection
IP54
Impact resistance
1.5 m
AUX LEDs
no
Magnetic
no
Specials
explosion-proof

Accessories

The package includes a holster to safely store your flashlight. The lanyard prevents accidental loss of the flashlight.

Package contents
lanyard
nylon holster

The performance of the Nitecore EF1 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 Nitecore EF1, then don’t hesite and signal the problem to us.

Nitecore EF1 (EF1) pictures

If there’s information about the Nitecore EF1 that you would like to see on this site, then write to our webmaster@flashlightchart.com address.

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