---
product_id: 1756745
title: "66318 MicroStream 45-Lumen Everyday Carry Pocket Flashlight with AAA Alkaline Battery, Black"
brand: "streamlight"
price: "159 zł"
currency: PLN
in_stock: true
reviews_count: 8
category: "Streamlight"
url: https://www.desertcart.pl/products/1756745-66318-microstream-45-lumen-everyday-carry-pocket-flashlight-with-aaa
store_origin: PL
region: Poland
---

# 3.5 inches ultra-compact 45 lumens brightness MIL-SPEC anodized aluminum 66318 MicroStream 45-Lumen Everyday Carry Pocket Flashlight with AAA Alkaline Battery, Black

**Brand:** streamlight
**Price:** 159 zł
**Availability:** ✅ In Stock

## Summary

> 🔦 Light Up Your Day, Wherever You Go!

## Quick Answers

- **What is this?** 66318 MicroStream 45-Lumen Everyday Carry Pocket Flashlight with AAA Alkaline Battery, Black by streamlight
- **How much does it cost?** 159 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/1756745-66318-microstream-45-lumen-everyday-carry-pocket-flashlight-with-aaa)

## Best For

- streamlight enthusiasts

## Why This Product

- Trusted streamlight brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lifetime Confidence:** Backed by a limited lifetime warranty and proven drop-tested beyond industry standards—your everyday carry just got an upgrade.
- • **One-Handed Operation:** Tail-cap push button offers momentary or constant-on modes with a tactile feel that prevents accidental activation in your bag or pocket.
- • **Pocket-Sized Powerhouse:** Ultra-compact 3.5" design fits effortlessly in your pocket or clipped to your hat brim for hands-free convenience.
- • **Reliable LED Brilliance:** 45 lumens of crisp, clean light powered by a single AAA alkaline battery with a 2-hour runtime and a 30,000-hour LED lifespan.
- • **Military-Grade Durability:** Crafted from Type II MIL-SPEC anodized aircraft aluminum with a scratch-resistant polycarbonate lens—built to survive the toughest daily grind.

## Overview

The Streamlight 66318 MicroStream is a compact, ultra-durable everyday carry flashlight featuring 45 lumens of bright LED light powered by a single AAA alkaline battery. Engineered with MIL-SPEC anodized aircraft aluminum and a scratch-resistant polycarbonate lens, it offers reliable performance with momentary and constant-on modes via a tail-cap switch. Its removable pocket clip doubles as a hat clip for hands-free use, making it the perfect rugged companion for professionals on the move. Backed by a limited lifetime warranty, this lightweight powerhouse delivers dependable illumination in a sleek, pocket-friendly design.

## Description

Product Description The Microstream is a compact single AAA alkaline battery powered flashlight designed for use in all markets. It features a tail cap switch, momentary or constant on operation, a combination pocket/hat clip for convenience, and amazing brightness and run time for a light of its size and price. The aluminum housing with Type II Military Spec anodizing helps make the light extremely durable and abrasion resistant. desertcart.com Compact and lightweight, the Streamlight MicroStream is a portable penlight with a super-bright, high-flux LED that lasts up to 30,000 hours. Featuring a tail-cap switch for single-handed operation, and durable and water-resistant materials for use in extreme conditions, the Streamlight MicroStream Penlight is ideal for daily use at home or at work.Powerful Performance in a Petite PackageWeighing just 1.04 ounces, the Streamlight MicroStream Penlight is small enough to fit easily and comfortably in your pocket, purse, backpack, or tool bag. You can also clip it to your pocket for easy access, or use the included key ring or safety lanyard for convenient portability. Powered by one "AAA" battery (included), the MicroStream produces 20 lumens of light with a battery run time of 1-1/2 hours, and the 1/2-watt LED will last 30,000 hours.The Advantages of LED LightAn LED is ideal for a light that gets used on a daily basis. You don't have to worry about breaking the light, since there is no glass or filament, and you rarely have to replace LEDs because they can last a lifetime. Save time and money on batteries as well--they will last much longer with an LED than with a regular light bulb.Innovative Technology Provides Bright, Powerful IlluminationWith Streamlight's specially engineered reflector, proprietary Micro Optical System (MOS) for optimized output and run time, and battery-booster electronics, the MicroStream produces a bright and powerful beam of light that is more intense than most LEDs on the market.Push Button for Convenient Operation Designed to keep out dust and other particles, the rubber, push-button tail cap is quick and easy to use with one hand. Depress the tail cap slightly for a momentary light, or click into the constant-on position. With a comfortable, tactile feel, the convenient push button is also stiff enough that it won't accidentally turn on in your handbag or pocket.Durably Constructed for Use in Extreme ConditionsMachined from solid, aircraft-grade aluminum, the MicroStream is corrosion and water resistant, and features an unbreakable and scratch-resistant polycarbonate lens. Arriving with an unbreakable pocket clip, the MicroStream is ideal for use in automotive, hardware, law enforcement, security, sporting, and outdoor applications. It's been extensively field tested and drop-test verified above the industry standard of 6 feet. The Streamlight MicroStream Penlight is backed by a manufacturer's limited lifetime warranty.What's in the BoxStreamlight MicroStream Penlight, key ring, safety lanyard, and one "AAA" battery. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); From the Manufacturer Streamlight Micro Stream LED Pen Flashlight features a super bright, high flux, 1/2 watt LED and has a lifetime of up to 30,000 hours as well as never needs to be replaced. It consists of micro optical system which facilitates optimized output and run time. This flashlight is corrosion and has waterproof construction with an unbreakable polycarbonate lens as well as pocket clip. It consists of rubber push button tail cap on-off switching. See more

Review: Tiny AAA light. Streamlight is king for simple, reliable EDC - Quick verdict: The MicroStream is a dependable pocket backup that just works. Perfect if you want a tough, single AAA light with a clean beam for everyday tasks. Context: Bought April 14, 2025 for $19.99. Lives in a backpack and sometimes a pocket. Clip rarely used. Running the included AAA alkaline. Tens of quick uses per month and it has not needed a battery swap yet. Wins: • Surprisingly bright, and the beam is clean with a usable hotspot, ideal for finding dropped screws or reading labels • Runtime feels strong for a single AAA, no sudden dimming on short tasks • Clip holds tight in a pocket and the light shrugs off drops onto hard floors Tradeoffs: • The clip is removable, but taking it off can scratch the paint at the contact points • Only one brightness level, which keeps it simple but limits flexibility Dealbreakers: If you need a true headlamp or multiple output levels, consider a 2 mode AAA or a small rechargeable with a moonlight setting. Tests and measurements: • Drop test from waist height to concrete, no functional issues, just tiny finish marks • Beam check on a white wall, round hotspot with soft spill, no ugly rings • Battery test in real use, short tasks over weeks on the included alkaline with no replacement yet Tips: If you plan to remove the clip, slide a thin layer of tape under the contact area to protect the finish. For hat brim use, keep the logo toward the bill to aim the hotspot downward. Alternatives considered: A USB rechargeable keychain light is brighter for bursts, yet needs charging and can get hot. A 2 AAA penlight gives longer runtime and a slimmer profile, but it is longer in the pocket. Durability check-ins: Month 1, finish looks good with small clip marks. Month 3, repeated pocket carry shows light scuffing only. Month 5, switch still crisp, no flicker, battery still fine for quick tasks. Bottom line: ⭐⭐⭐⭐⭐ Classic Streamlight reliability at a fair price. Not flashy, just a tough little light from a brand that has earned the crown for everyday carry. ↓ Please tap "Helpful" if this review was useful to you!
Review: Compact, Bright, and Always Reliable - I've used a lot of small flashlights over the years, but the Streamlight MicroStream really impressed me. Despite its compact size, it puts out a surprisingly bright 45 lumens, which is more than enough for most tasks. Whether I’m out on a night hike, working under the hood, or just looking for something in the garage, this little light does the trick. The clip is sturdy and versatile—I’ve attached it to my pocket, hat brim, and even my tool bag. The push-button tail switch is responsive, and I appreciate the momentary or constant-on feature. The aluminum housing makes it tough enough to handle drops and rough use without any issues. Battery life is decent for its size, and I like that it runs on a single AAA battery. Simple, effective, and rugged—exactly what I want in a pocket flashlight. Highly recommend it for anyone looking for a reliable everyday carry light.

## Features

- Anodized Aluminum
- Made in the USA or Imported
- Type II MIL-SPEC abrasion and corrosion-resistant anodized aircraft aluminum construction with unbreakable, scratch-resistant polycarbonate lens
- Ultra compact design fits in the palm of your hand, comfortably fits in your pocket
- Type II mil spec abrasion and corrosion resistant anodized aircraft aluminum construction with unbreakable, scratch resistant polycarbonate lens
- Removable pocket clip also clips onto brim of hat for hands free use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00143JZ08 |
| Additional Features | Non-Rechargeable, Water Resistant |
| Batteries are Included | Yes |
| Battery Description | Alkaline |
| Battery Life | 5 Hours |
| Battery Type | Alkaline |
| Best Sellers Rank | #7,285 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #101 in Handheld Flashlights |
| Brand Name | Streamlight |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (12,398) |
| Finish Types | Black |
| Global Trade Identification Number | 00080926663183 |
| Included Components | Battery, Clip, Flashlight, User Guide |
| Item Dimensions D x W x H | 3.5"D x 0.6"W x 0.6"H |
| Item Dimensions L x W x H | 3.5"L x 0.6"W x 0.6"H |
| Item Type Name | Microstream Flashlight |
| Item Weight | 1.04 Ounces |
| Light Output Maximum | 45 Lumens |
| Light Path Distance | 41 Meters |
| Light Source Special Features | Momentary/Constant On Modes |
| Light Source Type | LED |
| Light Source Wattage | 0.15 Watts |
| Manufacturer | Streamlight |
| Manufacturer Part Number | 66318 |
| Manufacturer Warranty Description | Limited lifetime warranty. |
| Material Type | Aluminum |
| Model Number | 66318 |
| Mounting Type | Cap Mount or Pocket Clip |
| Number of Batteries | 1 AAA batteries required. (included) |
| Number of Light Sources | 1 |
| Power Source | Battery Powered |
| Recommended Uses For Product | Camping, DIY, Home Defense, Industrial, Safety & Security |
| Runtime | 2 hours |
| Set Name | Microstream Flashlight Set |
| Shape | Round |
| Size | 3.6 inches |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specification Met | ANSI, CE, IPX4 |
| Style Name | Clear Retail Packaging |
| UPC | 080926663183 |
| Unit Count | 1.0 Count |
| Voltage | 1.5 Volts (DC) |
| Warranty Type | Limited Lifetime Warranty |
| Water Resistance Level | Water Resistant |
| Wattage | 18 |
| White Brightness | 45 Lumens |

## Product Details

- **Color:** Black
- **Light Source Type:** LED
- **Material:** Aluminum
- **Power Source:** Battery Powered
- **Special Feature:** Non-Rechargeable, Water Resistant

## Images

![66318 MicroStream 45-Lumen Everyday Carry Pocket Flashlight with AAA Alkaline Battery, Black - Image 1](https://m.media-amazon.com/images/I/61kYUmAmOGL.jpg)

## Questions & Answers

**Q: New specs on Streamlight website is 45 lumens, is this 45 or the older 35 lumens?**
A: March 2022, it's 45 lumens.

**Q: Is this the newest version with 35 lumens?**
A: Bought my second Microstream on April 30, 2016. It was the 35 Lumen version.

**Q: can i buy a replacement end cap for this light? i bought it and love this light but the on switch is already worn out and the light goes off.**
A: Amazon sells the end cap switch (part number 660023) that fits both the MicroStream (uses 1 AAA battery) as well as the Stylus Pro (uses 2 AAA batteries). Right now it is $6.96 + tax. I was about to order a new switch when I thought I would see if they are usable in either light. The alkaline batteries that came with my Stylus Pro leaked and damaged the switch. Now I will be using NiMH batteries in the Stylus Pro like the one I am using in my MicroStream.

**Q: does it have hat clip**
A: I received mine this week, October 2020 and it is 250 lumen and has a combination hat/pocket clip.  Very nice light.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tiny AAA light. Streamlight is king for simple, reliable EDC
*by J***. on September 21, 2025*

Quick verdict: The MicroStream is a dependable pocket backup that just works. Perfect if you want a tough, single AAA light with a clean beam for everyday tasks. Context: Bought April 14, 2025 for $19.99. Lives in a backpack and sometimes a pocket. Clip rarely used. Running the included AAA alkaline. Tens of quick uses per month and it has not needed a battery swap yet. Wins: • Surprisingly bright, and the beam is clean with a usable hotspot, ideal for finding dropped screws or reading labels • Runtime feels strong for a single AAA, no sudden dimming on short tasks • Clip holds tight in a pocket and the light shrugs off drops onto hard floors Tradeoffs: • The clip is removable, but taking it off can scratch the paint at the contact points • Only one brightness level, which keeps it simple but limits flexibility Dealbreakers: If you need a true headlamp or multiple output levels, consider a 2 mode AAA or a small rechargeable with a moonlight setting. Tests and measurements: • Drop test from waist height to concrete, no functional issues, just tiny finish marks • Beam check on a white wall, round hotspot with soft spill, no ugly rings • Battery test in real use, short tasks over weeks on the included alkaline with no replacement yet Tips: If you plan to remove the clip, slide a thin layer of tape under the contact area to protect the finish. For hat brim use, keep the logo toward the bill to aim the hotspot downward. Alternatives considered: A USB rechargeable keychain light is brighter for bursts, yet needs charging and can get hot. A 2 AAA penlight gives longer runtime and a slimmer profile, but it is longer in the pocket. Durability check-ins: Month 1, finish looks good with small clip marks. Month 3, repeated pocket carry shows light scuffing only. Month 5, switch still crisp, no flicker, battery still fine for quick tasks. Bottom line: ⭐⭐⭐⭐⭐ Classic Streamlight reliability at a fair price. Not flashy, just a tough little light from a brand that has earned the crown for everyday carry. ↓ Please tap "Helpful" if this review was useful to you!

### ⭐⭐⭐⭐⭐ Compact, Bright, and Always Reliable
*by J***S on May 13, 2025*

I've used a lot of small flashlights over the years, but the Streamlight MicroStream really impressed me. Despite its compact size, it puts out a surprisingly bright 45 lumens, which is more than enough for most tasks. Whether I’m out on a night hike, working under the hood, or just looking for something in the garage, this little light does the trick. The clip is sturdy and versatile—I’ve attached it to my pocket, hat brim, and even my tool bag. The push-button tail switch is responsive, and I appreciate the momentary or constant-on feature. The aluminum housing makes it tough enough to handle drops and rough use without any issues. Battery life is decent for its size, and I like that it runs on a single AAA battery. Simple, effective, and rugged—exactly what I want in a pocket flashlight. Highly recommend it for anyone looking for a reliable everyday carry light.

### ⭐⭐⭐⭐⭐ Excellent Pocket Flashlight
*by A***R on July 26, 2010*

Quick review: Great focused flashlight for tight quarters. Single AAA battery keeps it small but won't give you more than 2 hours of light. Perfect for electronics work, engine work, keeping in your glove box, taking out the trash, or any other area where you want a lot of light without a lot of fuss. Long review: I love this flashlight over any other I've ever owned. The 20 lumens of output is intensely bright in a concentrated cone shaped beam (I can see the beam at night it's that bright!). At about 8 feet away the main brunt of the light is about a foot or so wide. Furthermore, this light gives out a large dim ring around the center (8 feet wide at 8 feet away). This secondary ring not only makes this light good as a general flood light around the house in the dark; but for close quarters work where 20 lumens is just too much, you can aim a bit to the side and enjoy a more mild 3-5 lumens. In terms of how far away you can use this light, it depends. The beam is very focused so it does carry some light for quite a distance, but because it's only a single small LED don't expect that much. I'd say that at night it remains good for up to about 20-30 feet and still useful with some squinting at about 50 feet. The light color is 80% white with tinges of blue and yellow mixed in. The build quality is top notch with a sturdy clip and anodized finish. I have scuffed the finish up a bit but the flashlight almost "self heals" and keeps them hidden. I also get the feeling I could run this over a few times with a car and it would keep on going. For a gauge of how big it is, it's about the exact size and thickness of my middle finger (male). I have no problems carrying it in a shirt pocket or side pocket of my pants as though it were a pen, and it doesn't fall out at the drop of a hat. The only obvious downside to a light like this is the size vs battery trade off. Streamlight says that the light will only last about an hour and a half on a single AAA battery. From my experience that's about accurate as well, although I usually change the battery out at the hour mark just to be safe. For me however, I prefer the smaller size over a longer battery life. In summary, this light is easily worth the $20 price tag if you want to take a step up from lesser mini mag lites. It's very comfortable to use and grip, and it seems like it'll provide many years of service. As long as you don't mind using up a few AAA batteries, especially if you're a heavy user, you can't go wrong with this flashlight either for yourself or as a gift for others.

## Frequently Bought Together

- Streamlight 66318 MicroStream 45-Lumen Everyday Carry Pocket Flashlight with AAA Alkaline Battery, Black
- Streamlight 66118 Stylus Pro 100-Lumen Penlight with 2 AAA Alkaline Batteries, Black
- Streamlight Switch Assembly for Stylus Pro/MicroStream Pen Lights Black

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-05-08*