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Streamlight

Streamlight 66323 MicroStream 45-Lumen 420-Candela EDC Ultra-Compact LED Flashlight with AAA Alkaline Battery, Clear Retail Packaging, Red

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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Jun 11
Order within 3 hours and 21 minutes
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Style: Clear Retail Packaging


Size: Non-Rechargeable (Pack of 1)


Color: Red


Features

  • Powerful and Portable: Features 45 Lumens, 420 Candelas, beam distance of 41 Meters with a run time of 2.25 Hours on high
  • Hands-Free Operation: The Streamlight MicroStream comes with a removable pocket clip that allows you to clip it on a brim of a hat for hands free use
  • Compact Size: Measures under 4 inches in length with a slim, pocket-friendly profile; overal dimensions are 3.60" L x 0.60" W x 0.60" H
  • Battery Powered Operation: Uses one AAA alkaline battery
  • Built Streamlight Tough: Durable aluminum construction, IPX4 water resistant and 1 Meter impact resistance tested

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.

Special Feature: Durable, Lightweight, Non-Rechargeable, Portable, Weatherproof


Color: Red


Power Source: Battery Powered


Light Source Type: LED


Material: Aluminum, Polycarbonate


Additional Features: Durable, Lightweight, Non-Rechargeable, Portable, Weatherproof


Power Source: Battery Powered


Light Source Type: LED


White Brightness: 45 Lumens


Voltage: 1.5 Volts


Battery Type: Alkaline


Number of Batteries: 1 AAA batteries required. (included)


Water Resistance Level: Water Resistant


Light Output Maximum: 45 Lumens


Battery Description: Alkaline


Mounting Type: Cap Mount or Pocket Clip


Smart Home Compatibility: Not Smart Home Compatible


Battery Life: 2.25 Hours


Number of Light Sources: 1


Batteries are Included: Yes


Light Source Special Features: Energy efficient, good beam quality, hands-free operation, water resistant


Light Path Distance: 41 Meters


Runtime: 2 hours


Item Dimensions D x W x H: 3.6"D x 0.6"W x 0.6"H


Item Weight: 1.1 ounces


Size: Non-Rechargeable (Pack of 1)


Item Dimensions L x W x H: 3.6"L x 0.6"W x 0.6"H


Included Components: Battery, Belt Clip, MicroStream Flashlight, User Guide


Brand Name: Streamlight


Recommended Uses For Product: Outdoor


Global Trade Identification Number: 37


Manufacturer: Streamlight


UPC: 080926663237


Manufacturer Warranty Description: Limited lifetime warranty.


Manufacturer Part Number: 66323


Model Number: 66323


Item Type Name: Every Day Carry Flashlight


Unit Count: 1.0 Count


Color: Red


Style Name: Clear Retail Packaging


Finish Types: Clear


Shape: Round


Warranty Type: Limited


Material Type: Aluminum, Polycarbonate


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 11

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Great mini flashlight
Style: Clear Retail Packaging Size: Non-Rechargeable (Pack of 1) Color: Red
Good flashlight, reasonably bright given it's very small size. Great for camping or hiking when you are trying to keep the weight of your gear down.
Reviewed in the United States on March 26, 2026 by andy
    • Very awesome flashlight
Style: Clear Retail Packaging Size: Non-Rechargeable (Pack of 1) Color: Red
Awesome little flashlight, bright and strong casing, sealed great. Been through the washing machine a few times and still works awesome
Reviewed in the United States on February 7, 2026 by Randy M.
    • A Mighty Fine Light A Mighty Fine Light
Style: Clear Retail Packaging Size: Non-Rechargeable (Pack of 1) Color: Red
Review Image by Amazon Customer
I bought the black version of this flashlight 3.5 years ago, and it remained on my keychain ever since. It was used on an almost daily basis. However, the light finally gave up and would not turn on (yes, I checked to make sure it wasn't just a dead battery). So, not wanting to go without this trusty, efficient, powerful, and small light - I ordered a new one. I got the red one since it was the least expensive version offered last week, and it and was the only one with Prime shipping at the time. I am noticing that the red color makes it easier to find my keys since it stands out more than the black one did, and the red has a nice finish to it. I had forgotten how nicely the new threads turn with the light oil and fresh rubber o-rings that come with it (as opposed to my old one that gives a good "squeak" when unscrewing the battery compartment after 3.5 years of loyal service). This new one at 45 lumens seems brighter than the old one. It is also nice to find a name-brand battery included with the flashlight - an extra bonus. The clip from my old, black flashlight fit perfectly on the new, red one (see picture). This was great since I had modified the original clip by drilling a tiny hole near the top of it to accommodate a small keyring so I could attach it to my keychain. The new clip from the red flashlight is now stored on the old light - yes, I am not throwing the old one away quite yet. You can see from the other reviews that this is a fine product. I highly recommend it. ... show more
Reviewed in the United States on September 17, 2017 Reviewed in the United States on September 17, 2017 by Amazon Customer
    • Torture tested, cowboy approved.... Torture tested, cowboy approved....
Style: Clear Retail Packaging Size: Non-Rechargeable (Pack of 1) Color: Red
Review Image by THEJOSH
Review Image by THEJOSH
Review Image by THEJOSH
Review Image by THEJOSH
I ordered this light in February, I have had it for about a month now works amazingly. A perfect size for any size pocket, and the clip is very strong as well. I use this light every day at work and home. I am going to order one for my wife and son as well. The battery lasts too, I put the included battery in when I received it a month ago and with daily use its still going strong with no noticeable dimming in the light beam. As far as the construction... It is phenomenal! While at work I was moving skids with the forklift, getting off to straighten a load I was unaware that my stream light fell to the ground. As I finished moving skids I noticed my light laying on the pavement right in the path of the forklift tires, I realized that I had run it over about 3 times. Feeling a bit dumb for not noticing it earlier I picked it up expecting the worst. However upon retrieving the light most all of the damage was superficial, the turned on and off just as it had before. The lens didn't have a scratch, and even the pocket clip was still ok. ... show more
Reviewed in the United States on March 22, 2016 Reviewed in the United States on March 22, 2016 by THEJOSH
    • Great flashlight, highly recommend
Style: Clear Retail Packaging Size: Non-Rechargeable (Pack of 1) Color: Red
I prefer streamlight as a brand. Tried Olight and it does have its benefits, but with my experience, streamlight has good customer service and the services they offer for repair have been more than fair. Olight and Streamlight are both manufactured in China, it's just that Streamlight is based in the US. So realistically, that shouldn't matter. My biggest complaint with this version of the microstream is probably that it only has one level of brightness. I have the rechargeable version and I prefer having the two options of a dimmable light and bright. Unfortunately, with my EDC holster I have, when I take the rechargeable microstream out, it pulls down the cover that hides the charging port whereas this version of the microstream doesn't which eliminates that issue. Overal, I highly recommend the microstream it's a great flashlight for EDC. ... show more
Reviewed in the United States on March 18, 2025 by Colton
    • Best Pocket Light Ever
Style: Clear Retail Packaging Size: Non-Rechargeable (Pack of 1) Color: Red
I love the Streamlight Microstream!!! The flashlight lasts for hours, and only uses a single AAA battery. And this light is also virtually indestructible. I've left them in the washing machine and the dryer and they come out working fine. The red finish is really cool and high quality. It's small enough to become your everyday carry, and bright enough to become your "go to" flash light. Unless your spotting deer from 100 miles away, this is all you need. The balance between beam and flood lighting is pretty much perfect in my opinion. It doesn't light up the whole room, but it's not like a lazar either. I've been using these lights for years and only need to replace them because I lose them. The push button switch on the back is brilliant. You can pull it from your pocket and turn it on with one hand. If you just press gently, the light will come on, but then turn off as soon as you release. If you press harder until it clicks, the light will stay on until you press hard again. This is the perfect flashlight! ... show more
Reviewed in the United States on November 13, 2017 by Davo
    • good start
Style: Clear Retail Packaging Size: Non-Rechargeable (Pack of 1) Color: Red
this thing really kicks butt with a 10440 battery!! research it.
Reviewed in the United States on November 7, 2025 by Hogman
    • Great little light
Style: Clear Retail Packaging Size: Non-Rechargeable (Pack of 1) Color: Red
Does not seem to have the power switch problems that the USB version has.
Reviewed in the United States on May 31, 2026 by J. Caldwell

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