Coast G20 Inspection Beam Penlight, 72' Beam, Black, AAA Battery

SKU: CFTT7817CP

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Review Summary

2026-01-01T19:00:00

Rated 5 out of 5

Great compact light

Bought this to replace a Coast penlight that was "lost." Needed a penlight that could be hung in a holster near the bed in our camper to use for accessing bathroom in the dark. Works great for this!

RonnieMod

2026-01-01T19:00:00

Rated 5 out of 5

An Exceptional Product by Any and All Measures

Beginning with the _concept_ of the perfect penlight, continuing with _logical_ product development on the drawing board, and culminating in a superior price point!

Chuck

2025-12-21T19:00:00

Rated 5 out of 5

Ol' dependable!

We have been using G20 Coast penlights for almost ten years. We have also used any number of other brands that we get as stocking stuffers and last minute emergency purchases when a Coast wasn't immediately available, and NOTHING has stacked up comparably. We like the Coast G20 so much that we ended up going straight to the site after the stores near us stopped stocking them, and we ordered 7 this time! Within a week, we accidentally screwed up the lens on one and Coast had a new one to us in a week, incredible customer service and the price of this light, between $11-18, can't be beat with the flooded market of $10 crappy lights available. Those ten dollar lights don't begin to challenge the quality of the G20...

2025-12-08T19:00:00

Rated 1 out of 5

Great light until you need to change the batteries

Was a great product until I couldn't get the battery out of the housing?. I tried everything. Heating the case, applying lubricant oil, tapping on a surface? it's a great flashlight until you need to replace the batteries? makes sense why it's 15 bucks.

Matt F.

2025-12-06T19:00:00

Rated 5 out of 5

i love my g20

I started carrying a flashlight about 15 years ago and couldn't find one that could hang with me. until i found the g20 ive worn out all kinds of competitors ( police, quantum) other no name ones but this thing has been with me in my pocket for years and it doesn't flicker or anything until the batteries go. i use the cheap batteries in it because they last forever in this thing. ill definitely get another one when this thing finally quits im thinking of trying that g22 out since this one has been so good

Tony

2025-11-05T19:00:00

Rated 5 out of 5

G20

I bought my Hx7 about four years ago, it still works to this day, and performs just like it did the day I bought it.It has 360 Lumens of light and 130 lumens on high. It has a water resistant and dust resistant and reliability, very durable, my son as ran over my at least four or five times, has a few scratches but still works. I've dropped in the water haven't had any issues with it. I've only have used the AA batteries and it can put out up to 3 half hours. But you can different type of out comes on the different batterys. Good EDC flashlights for any occasions.

Glen

2025-08-18T20:00:00

Rated 5 out of 5

Quality product

Good quality,I've been using this flashlight for years, no hassle warranty.

Daniel

2025-08-17T20:00:00

Rated 5 out of 5

Solid light

I use this for sharp light focused needs ! Fits nice in shirt pocket .

Earl

2025-08-07T20:00:00

Rated 1 out of 5

They Flake Out

They are nice at first, HOWEVER, I would NOT buy again. I've had 3 now and they all FLAKE OUT. I don't think they are worth the money. I'm not paying 7 bucks for shipping anymore.

Edward

2025-07-07T20:00:00

Rated 5 out of 5

G20

These are the best pocket light i have ever had. I bought this to replace one that I lost.

Phil

2025-06-15T20:00:00

Rated 5 out of 5

COAST Inspection Lights Are a Cut Above

The inspection line of COAST products has been a top "go - to" place for obtaining a specific type of flashlight that is far superior to competing brands. Simply, the well-defined circle of light serves to exclude peripheral matters that do not need to be looked at. In fact, using the COAST inspection types is akin to using a microscope.

Hyman M.

2025-06-12T20:00:00

Rated 1 out of 5

Incomplete order

After too many orders, this was the first time where I received 1 item instead of 24 items

Abraham M.

2025-05-29T20:00:00

Rated 2 out of 5

Warning don't last long

Great at first but die few years ago don't work I get it in Walmart maybe bad batch

Corn

2025-05-28T20:00:00

Rated 5 out of 5

Excellent light

Had it for 2 years and the little pushbutton snapped off. Got another one on warranty 1 week later.

JB

2025-05-20T20:00:00

Rated 5 out of 5

Great value

Nice form factor for pocket light. Bright enough for most shop type environments. Decent quality and long battery life.

vinnie

2025-04-30T20:00:00

Rated 3 out of 5

just what I was looking for BUT...

I just bought this G20 and it was exactly what I was looking for but I was way overcharged for this compared to the price I see here. Also it says "Built-in USB-C port" which I can't seem to find anywhere nor can I find the "Charge indicator" light that was mentioned. There was no instruction manual provided-it's such a simple product I wouldn't have thought one would be needed but, as I've found, it would've been a good thing to have!

Larry

2025-04-06T20:00:00

Rated 2 out of 5

BETTER LIGHTS AVAILABLE

I've broke 2 just using daily within a year. Rather disappointing

Ethan

2025-04-03T20:00:00

Rated 5 out of 5

Great light!

Great Flashlight, just a little bigger than a sharpie and not big & bulky.

Mike B.

2025-04-01T20:00:00

Rated 5 out of 5

It's a handy light to have for engine work.

I do love these little lights. The inspection light isn't very bright compared to the mini Maglite with LED that I also carry in the same jacket pocket, but it'll get the job done if I drop a wrench.

MattA

2025-02-25T19:00:00

Rated 5 out of 5

My go-to flashlight.

I'm not exaggerating when I say that I have the G20 flashlight in my pocket at all times. All times that I am awake, at least. Even before I worked in emergency services, I liked to keep a dependable flashlight with me. But finding a flashlight that checked all of the boxes was tough. This flashlight is it! Big enough to fit in my hand well, but small enough that I don't notice it in my pocket. Bright enough to be useful, but still has a very good battery life. And the price is right. Something I am picky about with flashlights is the button or switch that operates it. For a flashlight that is going to be used a LOT, the button or switch has to be simple to use, durable, and it can't turn on accidentally. They got it right with the G20 - a single button on the tail cap with a simple on/off function. There is no cycling through functions. The light simply turns on every time you need it to. The rubber tail cap button is durable too. I have had other brands of flashlights where the rubber cap come off after time. But the button and rubber cap on the G20 hold up very well, even with a LOT of use. Besides the batteries lasting a very long time, my favorite feature on this flashlight is the crisp "inspection beam." The light's color, intensity, and clarity are perfect for focusing on a specific task. Yet the beam is bright and focused enough that you can light your way in the woods at night, for example, with a small penlight. The only improvement I would make to this flashlight is adding a rubber coated section maybe an inch down from the tail cap. This would allow the light to be held between the teeth comfortably for hands-free work. I have bought more than one of these flashlights for myself, and a few as gifts. I recommend the G20 flashlight, and COAST flashlights in general.

Jarrod

2025-02-06T19:00:00

Rated 5 out of 5

A great accessible tool.

The G20 Coast inspection flash light is a quality product superior in construction, durability and illumination. Its slim design and pocket clip makes it a highly accessible tool.

Frendly S.

2025-01-24T19:00:00

Rated 5 out of 5

Slim design great for inspections

Have purchased a couple year's ago , use every day, great light & warranty is great.

Lee

2025-01-13T19:00:00

Rated 5 out of 5

Great light

Great light, perfect for shirt pocket. Color is bright and stands out if dropped.

Mike

2025-01-12T19:00:00

Rated 5 out of 5

Great Everyday Carry

The G20 is a great little light for everyday use. I use mine at estate sales to see in places that many people miss. Been using one for many years now and will be using one for years to come.

Artie

2024-11-30T19:00:00

Rated 4 out of 5

Anybody need a pocket clip for a G20 light??

It finally arrived, catching up with the pocket clip I ordered without knowing it had no light attached to it! I pushed the little rubber on/off switch and it worked as advertised! Can't wait to fix the HP printer I bought the light to help me fix!

Captain E.

2024-10-18T20:00:00

Rated 5 out of 5

Outstanding form and function

I'm a forklift service technician, we work indoors and out in every type of lighting doing inspections. I bought this light having never seen or heard of Coast, and figured I would give them a shot. I have dropped this light (and ran it over) with a lift, used it in rain and shine, got it oily, greasy, everything you can probably think of, and it just works. The beam is bright, even with disposable batteries, and if I need to see a hydraulic leak in a dark warehouse shop, I have more than enough light to do so. Easily slides in a pen pocket and the clip holds firm. Hands down the best flashlight I've ever used.

ForkTech

2024-10-18T20:00:00

Rated 1 out of 5

Stopped working

Used once for ushering for probably 5 minutes. Next time I tried to use it, it wouldn't work, even with new batteries. Packaging was so difficult to open, it's in little pieces. Going to try to return.

Pam

2024-10-09T20:00:00

Rated 5 out of 5

G-20 Just The Right Size

Just the product I was looking for, small, compact & durable. Fits perfectly with my small tool kit as a go to flashlight, just the right size.

Barry Z.

2024-10-08T20:00:00

Rated 5 out of 5

Lumens

How many lumens does that flashlight have? Thank you!

adolfosolano

2024-09-06T20:00:00

Rated 3 out of 5

Great light

It's a good heavy light with a flood spot !! !!!!!!!!!!!

Nitro e.

Coast G20 Specifications

  • Beam Optics

    Inspection Beam

  • Beam Distance

    High: 72' (22m)

  • Runtime

    High: 10 hours

  • Battery Description

    2x AAA

  • Length

    5.65" (14.35cm)

  • Weight

    2.4 oz (68g)

  • UPC Code

    015286781703

About Coast G20

FEATURED REVIEWS

Awesome product

By Stock264

Ok long story short I lost this in my front yard and didn't find it till almost 6 months of winter, being outside in the elements, and only finding after I nearly ran over it with my lawn mower. It still works with dollar store batteries still in it. Outstanding product and extremely durable. You can see it totally got sun bleached and I can't get over that it still works with the batteries I had in it when I lost it. Dollar store batteries. Impressive.

By ROGER C.

I've had a G15, G19 and G20 I bought in a 3-pack for several years. The G20 is my main light, in a belt-loop holster, carried it that way for years. Had a little trouble with the switch once, but that cleared up and has worked great since. This is just about the perfect flashlight for many uses, light where you need it, not where you. don't. G19 and G20 use same switch end piece. Simply a GREAT set of lights, get one you won't regret it. Also gave G20's to my nephew and brother for aircr...

View full Review

Whether you store it in your shirt pocket, pants pockets, or a tool bag, the G20 Flashlight with its Inspection Beam Optic is a light that you should keep close. Optimized for up close use with its crisp edges and little glare, the perfectly circular beam illuminates where and when you need it.

With Coast's commitment to quality, the G20 Flashlight is impact resistant, weather resistant and its LED is virtually unbreakable. The G20 Flashlight is backed by Coast's lifetime warranty against defects in materials and workmanship. Tested and rated to ANSI/FL1 standards.

Inspection Beam
The Inspection Beam produces an incredibly clear and consistent beam from edge to edge making up close work or activities easier. Found on a variety of our penlights, the beam is capable of illuminating a defined area up to 30 feet (9 meters).

Coast G20 Features

  • Weather Resistant: IPX4
  • Pocket Clip
  • High: Turn on and off the light's power with the simple push of a button

Key Features

  • Weather Resistant
  • Pocket Clip
  • High Light Power

What's in the box:

  • G20 Inspection Beam Penlight
  • 2x AAA Batteries
  • Pocket Clip
  • Coast Lifetime Limited Warranty