Coast G20 (2017) review

2017

unspecified 5mm LED

36 lm output

121 cd intensity

2 x AAA batteries

The Coast G20 (G20) released in 2017. It uses unspecified 5mm LED, TIR reflector and 2 x AAA batteries. The powerful emitter in this flashlight provides up to 36 lm output, 121 cd intensity, and a beam distance of 22 m.

It uses a TIR lens to form the beam pattern. This light does not have memory function.

Table of contents:

Coast G20 specifications
Coast G20 pictures
Coast G20 comparisons

Coast G20 (G20) specifications

Brand	Coast
Name	G20
Type	G20
Rating	★★★★★ Rated 3/5 based on 1011 user votes.
Launch	2017
Form	flashlight

Body

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

Weight	68 g
Length	144 mm
Body diameter	16 mm
Head diameter	16 mm
Material	aluminium alloy with HAIII hard-anodized finish
Colors	black blue green orange red

System

A TIR lens works on the principle of total internal reflection. The TIR lens collimates the LED light into efficient, well-controlled light beams that maximize the usable lumens in the target area.

Emitter	unspecified 5mm LED
Color temperature	7700 K
Reflector	TIR
Lens	TIR
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	36 lm
Intensity	121 cd
Throw	22 m
CD/LM factor	3.36
CRI	73

Software

Modes	1 mode
Mode memory	no
Ramping mode	no
Strobe	no
SOS/Beacon	no

Features

The G20 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	2 x AAA batteries
Battery indicator	no
Charger port	no
LVP	no
Thermal regulation	no
Protection	IPx4
AUX LEDs	no
Magnetic	no

Accessories

Package contents	2 x AAA batteries

The performance of the Coast G20 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 Coast G20, then don’t hesite and signal the problem to us.