---
product_id: 1756745
title: "66318 MicroStream Pocket Flashlight, Black | 45 lumens; ultra-compact pocket design; multiple modes; IPX4 water resistant"
brand: "streamlight"
price: "€ 46.98"
currency: EUR
in_stock: true
reviews_count: 13
category: "Streamlight"
url: https://www.desertcart.at/products/1756745-66318-microstream-pocket-flashlight-black-45-lumens-ultra-compact-pocket
store_origin: AT
region: Austria
---

# 41 meters beam distance 45 lumens max brightness Type II MIL-SPEC anodized aluminum 66318 MicroStream Pocket Flashlight, Black | 45 lumens; ultra-compact pocket design; multiple modes; IPX4 water resistant

**Brand:** streamlight
**Price:** € 46.98
**Availability:** ✅ In Stock

## Summary

> 💡 Light Up Your Hustle with MicroStream Precision!

## Quick Answers

- **What is this?** 66318 MicroStream Pocket Flashlight, Black | 45 lumens; ultra-compact pocket design; multiple modes; IPX4 water resistant by streamlight
- **How much does it cost?** € 46.98 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/1756745-66318-microstream-pocket-flashlight-black-45-lumens-ultra-compact-pocket)

## 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

- • **Ready Out of the Box:** Includes AAA battery, key ring, and safety lanyard—your ultimate everyday carry companion backed by a limited lifetime warranty.
- • **Pocket-Sized Powerhouse:** Ultra-compact 3.6" design fits effortlessly in your pocket or clipped to your hat brim for hands-free brilliance.
- • **Smart One-Hand Operation:** Tail-cap push button offers momentary or constant-on modes with tactile feedback—no accidental switch-ons in your bag or pocket.
- • **Military-Grade Durability:** Crafted from abrasion and corrosion-resistant aircraft aluminum with an unbreakable polycarbonate lens—built to survive your toughest days.
- • **Precision LED Illumination:** High-flux LED delivers a crisp 45-lumen beam with a 41-meter reach, perfect for close-up tasks or quick inspections.

## Overview

The Streamlight 66318 MicroStream is a sleek, ultra-compact LED flashlight engineered for professionals and everyday users who demand durability and convenience. Featuring a military-spec anodized aluminum body, a scratch-resistant polycarbonate lens, and a powerful 45-lumen beam with a 41-meter range, it offers reliable illumination in a pocket-sized form. Its smart tail-cap switch enables quick, one-handed operation with momentary or constant-on modes, while the included AAA battery and versatile clip options make it the perfect hands-free tool for work, outdoor adventures, or emergency use. Backed by a limited lifetime warranty, the MicroStream is the ultimate blend of rugged performance and portability.

## Description

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. Product Description The Streamlight MicroStream LED flashlight is a compact and dependable everyday carry flashlight designed for convenience and durability. Featuring a high-performance LED, it delivers a bright, smooth beam ideal for close-up tasks, inspections, or outdoor activities, and perfect companion for technicians, first responders, or anyone needing dependable illumination on the go. Powered by a single, readily available AAA alkaline battery, the MicroStream offers extended runtime without the need for recharging. Its sleek anodized aluminum body is both impact-resistant and abrasion-resistant, ensuring long-lasting performance in tough environments. A two-way pocket clip provides versatile carry options; secure it to your pocket, gear, or even a hat brim for hands-free use. Combining portability, rugged construction, and reliable illumination, the Streamlight MicroStream is the perfect tool for professionals, hobbyists, and everyday users. 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.

Review: Excellent EDC and Bedside Buddy - So far I'm tickled to death with the newest addition to my EDC items. It features rugged construction, excellent design and it's versatile enough for a wide variety of uses. it's tiny and lightweight but powerful enough to be truly useful and you can easily carry it clipped to a pocket and never know it's there. At the end of the day, it comes out of my pocket and onto my nightstand. Our power went out again last night and this little light came in handy for letting the dog out and heading into the kitchen for water. The versatility doesn't stop there. The same clip that holds the light firmly in your pocket will also attach securely to the bill your ball cap, meaning you'll have two hands for that job you're trying to finish in the dark without resorting to holding a flashlight between your teeth. Another outstanding and very well thought out feature is the on/off switch. It's a push button on the butt of the barrel. It's very easy to depress it partially with your thumb and activate the light for a quick burst but it takes more effort to depress it fully and then release for a constant beam. It's an excellent design that makes the light quick to deploy but hard to accidentally engage--no worries if you need to pack the light away for travel. I also like the fact that it came with the one AAA battery it needs to power up its surprisingly strong beam. No instructions were included but everything you could wish to know is on the company's website. To me, this is a no-nonsense nice-looking functional unit that's been stripped down for ease of carry but still has the features you need to get the job done. There's no adjustable beam but everything you need is there and nothing you don't. I am super impressed with what I got for my money.
Review: Just buy it... - After years of ownership I can report this thing is great. If you are wanting a small flashlight that has a press to activate, press further to keep on switch with ONE setting which is a flood not a spot and is NOT adjustable that is durable and gives you a perfect amount of low light in a low light setting to be very bright and not blind you if you know what I mean. Also, giving you the option deep pocket carry or to attach it to your hat brim which is genius not brand specific but still it's got it if you want it and if not you can pull it off. That takes a regular run of the mill AAA battery and not some proprietary unobtanium battery then this is it. I personally keep it in my tool box to use on automotive chores in my shop. You are not going to be able to see 100 yards at night with it obviously, and it's not going to give you 24 hours of run time but for keeping in your pocket to see at night with it's perfect!

## 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 |
| Battery Description | Alkaline |
| Battery Life | 5 hours |
| Battery Type | Alkaline |
| Best Sellers Rank | #6,953 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #105 in Handheld Flashlights |
| Brand Name | Streamlight |
| Color | Black |
| Customer Reviews | 4.7 out of 5 stars 12,461 Reviews |
| Finish Types | Black |
| Global Trade Identification Number | 00080926663183 |
| Included Components | Flashlight |
| 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 Highlight | 45 lumens; ultra-compact pocket design; multiple modes; IPX4 water resistant |
| Item Length | 7.9 inches |
| 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 | Aluminum |
| Material Type | Aluminum |
| Model Number | 66318 |
| Mounting Type | Cap Mount or Pocket Clip |
| Number of Batteries | 1 AAA batteries required. (included) |
| Number of Items | 1 |
| 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 | 3.60" L × 0.60" W × 0.60" H |
| Special Feature | Non-Rechargeable, Water Resistant |
| Specification Met | ANSI, ANSI FL1, CE |
| Style Name | Clear Retail Packaging |
| UPC | 080926663183 |
| Unit Count | 1 Count |
| Voltage | 1.5 volts_of_direct_current |
| Warranty Type | Limited |
| 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 Pocket Flashlight, Black | 45 lumens; ultra-compact pocket design; multiple modes; IPX4 water resistant - 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

### ⭐⭐⭐⭐⭐ Excellent EDC and Bedside Buddy
*by B***. on June 27, 2026*

So far I'm tickled to death with the newest addition to my EDC items. It features rugged construction, excellent design and it's versatile enough for a wide variety of uses. it's tiny and lightweight but powerful enough to be truly useful and you can easily carry it clipped to a pocket and never know it's there. At the end of the day, it comes out of my pocket and onto my nightstand. Our power went out again last night and this little light came in handy for letting the dog out and heading into the kitchen for water. The versatility doesn't stop there. The same clip that holds the light firmly in your pocket will also attach securely to the bill your ball cap, meaning you'll have two hands for that job you're trying to finish in the dark without resorting to holding a flashlight between your teeth. Another outstanding and very well thought out feature is the on/off switch. It's a push button on the butt of the barrel. It's very easy to depress it partially with your thumb and activate the light for a quick burst but it takes more effort to depress it fully and then release for a constant beam. It's an excellent design that makes the light quick to deploy but hard to accidentally engage--no worries if you need to pack the light away for travel. I also like the fact that it came with the one AAA battery it needs to power up its surprisingly strong beam. No instructions were included but everything you could wish to know is on the company's website. To me, this is a no-nonsense nice-looking functional unit that's been stripped down for ease of carry but still has the features you need to get the job done. There's no adjustable beam but everything you need is there and nothing you don't. I am super impressed with what I got for my money.

### ⭐⭐⭐⭐⭐ Just buy it...
*by D***M on August 4, 2026*

After years of ownership I can report this thing is great. If you are wanting a small flashlight that has a press to activate, press further to keep on switch with ONE setting which is a flood not a spot and is NOT adjustable that is durable and gives you a perfect amount of low light in a low light setting to be very bright and not blind you if you know what I mean. Also, giving you the option deep pocket carry or to attach it to your hat brim which is genius not brand specific but still it's got it if you want it and if not you can pull it off. That takes a regular run of the mill AAA battery and not some proprietary unobtanium battery then this is it. I personally keep it in my tool box to use on automotive chores in my shop. You are not going to be able to see 100 yards at night with it obviously, and it's not going to give you 24 hours of run time but for keeping in your pocket to see at night with it's perfect!

### ⭐⭐⭐⭐⭐ 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 Austria*
*Store origin: AT*
*Last updated: 2026-09-06*