Name: Coast PolySteel 400 Pure Beam Focusing Flashlight, 440 Lumens, 688' Beam, 4x AAA
Brand: Coast
SKU: CF20765
Price: 27.99 USD
Availability: Discontinued
Rating: 4.7 (183 reviews)

Coast PolySteel 400 Pure Beam Focusing Flashlight, 440 Lumens, 688' Beam, 4x AAA

Coast PolySteel 400

Coast

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Coast Flashlights

Coast PolySteel 400 

Top Rated Gear: Coast PolySteel 400 Pure Beam Focusing Flashlight, 440 Lumens, 688' Beam, 4x AAA Power Source: AAA Battery, Type: LED Flashlights

If you work or play in an environment that puts constant stress on your equipment, then look no further than the Polysteel line of flashlights. The middle size of the collection, the Polysteel 400 Flashlight is waterproof, drop proof, and crush proof while possessing our Pure Beam Optics System with twist focus to make the light ultra durable and ready to weather any storm. With a stainless steel core and a poly outer, we put this light to the test, and it passed each one with style.With Coast's commitment to quality, the Polysteel 400 Flashlight is impact resistant, waterproof and its LED is virtually unbreakable. The Polysteel 400 Flashlight is backed by Coast's lifetime warranty against defects in materials and workmanship. Tested and rated to ANSI/FL1 standards.Pure Beam Focusing OpticsThe Pure Beam Focusing Optic combines our largest Ultra View Flood Beam with the Bulls-Eye Spot Beam making either up close or downrange illumination highly effective. While using the Ultra View Flood Beam, there is a consistent circle of light up to 11.5 feet (3.5 meters) in diameter at 6 feet (1.8 meters) in distance. While on the Bulls-Eye Spot Beam, you can illuminate up to 767 feet (234 meters) downrange with a transition halo around the spot to increase the effective viewing area.

This did not work after opening package. It was a warranty replacement and I only paid the tax. I went to Amazon and ordered a new battery pack because I replaced the batteries and still did not work. Hope this will work after I receive the new battery pack or I will be reaching out. I'd love to try the 800 at some point. This is the only flashlight my family and friends use and customer service was great with making good for the warranty unfortunately I got a bad one which is probably one in few.

Did not work.

This is a well built lite, been using for many years and still works good

Coast is solid

Excellent flashlight -- rugged, good beam.   Excellent customer support

Polysteel 400

The polysteel flashlight is an excellent choice for home and to keep in your auto it provides a great beam and runtime. The price is great so you get your money's worth. It feels great in your hand with excellent grip and it's a perfect size to weight ratio.

Polysteel 400 Flashlight

I own several of this model. I keep them in car, in the shop, in my backpack, my tool kit, and in the house. They get used regularly and never disappoint.

Well designed quality flashlight

Unfortunately, I have NOT received this item as of today, fe 6, 2025

NOT RECEIVED YET

Love this little flashlight. Powerful and rugged. It's my number one flashlight to go to.

#1 flashlight

Two new Polysteel 400 flashlights direct from Coast and neither twist focus can be turned. I have three other Coast flashlights and the twist focus turns fine. I sent both back to Coast for replacement. Coast customer service is very good.

Twist Focus Not Twisting

Great product! My first one got battery damage and Coast stood by their warranty and replaced it. Love to have these handy for hurricane season when we get flooding. Highly recommend!

Love this flashlight!

This was a replacement flashlight after the other one failed due to battery corrosion.  The warranty was handled quickly, received a replacement without any issues.  Love these flashlights & headlamps.

Flashlight Warranty

Nice flashlight. When I ordered it I expected it to come with the rechargeable battery. It does not better read everything. I felt it was misleading. Once I received it I went back and read the whole description and you have to look at the specs to see what you actually get.

I like what this is made out of some kind of strange rubbery plastic stuff it's easy to hold onto. It's got a good texture fits in the hand. Great I need to get the smaller one. I have three of the four battery black ones and I need to get another red one that I think only has three batteries and it's a lot smaller and I saw that they're making one out of the same materials that looks like a pan probably gonna have to have that as well.

great materials used

Bought a couple twin packs after the holidays a few years ago. Passed them out to family.  Great size, power and durability for all-round use, i.e. for car, around house, take camping/hiking, night walks with or w/o dogs, use them on my road & mountain bikes, etc.  The non-metal shell is nice, keeps hands from getting cold on winter days unlike a metal flashlight.  Like the High, Medium & Low intensity choices w/o the strobe or SOS, those are not necessary for general purpose use.  The focus to flood feature is good, though I would like the focused beam to be a few degrees tighter.  Actually, be great if the focus end had a range (from current focus limit to tighter focus) of several degrees before transition to the donut shaped bean on to flood.  This would improve its effectiveness down trails or road.  Existing beam is good on walks as it lights up sidewalk well edge-to-edge.
Had two issues with flashlight over the years and the service department was great, sending me replacements.  Big thumbs up to service department and Coast for backing their product!

Great all-round flashlight.

I purchased the light because I thought I could use a standard 18650 battery (my mistake). BUT like many other companies Coast wan't to keep details a secret, and sell their own "ZX865" battery.

Can't find rechargeable battery specs

Bought a Polysteel 400 a couple of years ago and use it daily, mostly to take out the dog at night.  It is very sturdy, well-made, comfortable in the hand and the perfect size to throw into my carryon when traveling.  It also has a lifetime warranty.   When it suddenly stopped working recently, I contacted Coast Products.  Completed the form, explained the problem and uploaded a photo of the flashlight.  The warranty claim was approved in a few days and a new flashlight arrived in less than two weeks!.  Wonderful service to accompany an excellent flashlight.

Great Flashlight and Outstanding  Warranty Service

The product quality is consistently outstanding, exceeding my expectations every time" 

 I highly recommend this company, products. You will not regret buying from them.

INSIGHT

I have a few of these and they are my go-to for everything small enough to jam in your pocket big enough to do the job I like the fact it can't roll away from you like a lot of the round ones you can set it somewhere and it will stay there the rechargeable battery is really nice I have had a few problems but they've always been resolved real quick with Coast their products are outstanding and I love the lights quickly the Stand by their products and that's that's all you can ask for.

Love these Coast makes a great flashlight and thei

A compact, tough light that is absolutely brilliant for illumination. Exceptional customer service.

Tough and bright.

Coast flashlights are great because they're reliable, bright and the switch just turns it on and iff, you dont have to toggle through fladhing lights. Just on and off. Perfect. And the warranty is second to none. They stand behing their products.

Great flashlight.

Very bright. Great range. Durable. Terrible battery life.

Handy light

I am very pleased with customer service..outstanding

Awesome customer service

Coast stands by their warranty,  Thank you.  This is the light I've been needing

Bright!

I keep these in every vehicle, SXS, tractor..  Small enough and bulletproof.

Great basic flashlight

I really like all of the things that I ordered from your company.

I really like this flashlight.

It's tough, but lightweight and very bright. Feels solid and compact.

I really like it, I'm glad I bought it. My mom too

Honored warranty for a headlamp I purchased previously so I thought I would give Coast more business, purchased two flashlights for me and my wife's vehicle, nice flashlights, well made, thanks

Another good purchase

This Polysteel 400 flashlight is a great deal for the money. It puts out tons of light. It's so bright using it inside that I have to dim it down a bit with the push button on the end. All in All I got a really good deal for an unbelievable price, I bought my whole family different lights from Coast because they have a great warranty on their products and everything is made very well giving you years of use.

Poly 400 Durable light

Great flashlight.  I have a Polysteel 600, but wanted something a bit smaller.  Great feel.  Brilliant light.  Heavy duty.  Love it.

Polysteel 400 is awesome

Outstanding light hard to believe something that small can lite up an area that much

Outstanding light

I buy lots of lights and knives from Coast.  In fact I bought 10 flashlights and 8 knives as Christmas gifts just a couple months ago.  A couple years ago   I bought a couple Polysteel 400 lights as backup lights to my Polysteel 1000 lights I keep in my cars. Last week I went to use one of the Polysteel 400 lights and it didn't turn on. I used it for a couple minutes just a month before but batteries are expected to go out.  

I opened the light to find the factory supplied batteries had leaked and corroded the battery pack and gotten into the body of the light.  The lights were a few years old but there is no way the batteries had beed depleted or expired.  

Upon calling Coast I was informed that they do not cover damage from battery leaks, even if the leak is caused by defective batteries they sell or supply.  However, as a courtesy they would do a one time replacement with the caveat that any future lights damaged by battery leakagr, even if it's their batteries, would not be covered.  This is not ok as all normal battery companies will cover damaged items as long as the battery has not passed it's expiration date. Most batteries have an expiration date of around 10 years after the date of manufacture.  

The Coast representative was very nice and as statehad offered a one time replacement, however this is not addressing a legitimate issue.  If you supply batteries and they damage a customer's product, you should cover the item if your batteries leak prior to the expiration date.

The rep recommended that I check all my flashlight batteries ever 6 months to see if they are leaking.  Ahhhh no ma'am.  You can't sell defective things and put the responsibility on the customer.  I have had batteries left in flashlights and other devices for 5 years and some longer without issue. Granted if a battery is totally dead, exposed to water, or other chemicals they can leak. And they can leak after their expiration date when totally discharged but they shouldn't leak without actual cause.  

She also stated temperature extremes can cause premature leakage.  Yes this can happen but typically won't happen unless they are sitting in the sun, or otherwise being baked. I have several other lights in this car with even older batteries and none of them have had an issue.

So my options are to utilize my one time courtesy replacement or save it in the event one of my more expensive lights gets damaged from a battery Coast sells or provides.  These are not great options.  

Coast will provide a response to the effect of, "Please contact us regarding your issue." I already did and got a subpar answer.  I am seriously questioning my loyalty to Coast. I have Coast lights going back almost 20 years. Maybe it's time to look at other companies or at least better battery manufacturers that will stand behind their products and fix damage caused by a defective product without limiting a customer's future options.

Coast PolySteel 400 Pure Beam Focusing Flashlight, 440 Lumens, 688' Beam, 4x AAA

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