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Streamlight MicroStream Personal EDC Flashlight - C4 LED - 45 Lumens - Includes 1 x AAA - Black and Red (66318 and 66323)

Streamlight MicroStream Personal EDC Flashlight
Side shot with the pocket clip
Angle shot with the tactical tail switch
Flashlight with accessories
Package shot of the black version
Streamlight MicroStream Personal EDC Flashlight
Side shot with the pocket clip
Angle shot with the tactical tail switch
Flashlight with accessories
Package shot of the black version
Click to Enlarge Image
  • Compact pocket light perfect for casual, everyday use
  • Micro Optical System offers enhanced output and runtimes on a single AAA battery
  • Push button tail cap is sturdy, reliable and comfortable to press
  • Rugged pocket clip can attach to clothing or baggage for easy carrying

Please note: This item is not eligible for any promotions or coupon codes.

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Streamlight MicroStream EDC Flashlight

The Perfect Pocket LED Light

The Streamlight MicroStream EDC Flashlight produces up to 45 lumens of bright hand-held LED power. The MicroStream EDC flashlight is one of the smallest flashlights Streamlight offers weighing as little as 1.04 ounces and only 0.60" in diameter. The compact size of the flashlight, and the dual-sided pocket clip, allows you to easily slide your flashlight comfortably in your bag or pocket. The rubber push button tail cap activation switch helps prevent accidental activation. Accidental activation typically occurs with lights that have side-switch activation buttons - which makes the Streamlight Micro-Stream EDC flashlight the perfect pocket flashlight. You can keep it in your pocket without fear of it accidentally turning on.

Moreover, this EDC has an IPX4 waterproof rating and is O-ring sealed to further protect your flashlight from the outside environment. Take your light hiking, kayaking, to work, and more without fearing that it will be damaged by a little bit of water. Included in this package are a double-sided pocket clip and the battery that powers it. Get your Streamlight MicroStream EDC Flashlight here today!


  • Compact, waterproof construction withstands tough work environment
  • Proprietary Micro Optical System (MOS) for optimized output (super bright beam) and run time
  • Unbreakable pocket clip and ring for easy storage/attachment
  • Meets CE certification
  • Push button tail switch offers momentary or constant on operation
  • Every opening has an O-ring for extra protection
  • Comes with Streamlight's Limited Lifetime Warranty


  • LED: 1 x C4 LED
  • Power Source: 1 x AAA Alkaline Battery (Included)
  • Peak Beam Distance: 41 meters (134.51 ft.)
  • Peak Beam Intensity: 420 cd
  • Brightness Outputs:
    • High 45 Lumens - 2.25 Hours
  • IPX Rating: IPX4
  • Impact Resistance: 1 meters (3.28 ft.)
  • Dimensions:
    • Length - 3.60" (91.50 mm)
    • Body Diameter - 0.60" (15.00 mm)
  • Weight: 1.04 oz. (29.5 g)

US shipping warning
Runtime (Hours):-2.25---
Output Modes:Single Brightness Level
Compatible Batteries:1 x AAA
Batteries Included:Yes
Included Accessories:Batteries, Pocket Clip
Flashlight Usage:Every Day Carry, Penlights
Throw Distance (Max):38m
Switch Location:Tailcap
Product Certifications:ANSI, IPX-4
Warranty:Battery Junction 30-Day Warranty, Streamlight Limited Lifetime Warranty
Return Policy:Battery Junction Return Policy
Primary Material:Anodized Aluminum
Product Weight:1.04oz
Product Dimensions:3.5" (L) x 0.6" (Body Diameter)
Country of Origin:CN
By Blackhawkxx
S.W. Pa.
Love it.
January 6, 2019
This has to be the most useful tool that I ever bought. I have two of them and bought others for gifts. It is so small that I can ALWAYS have it on me and once you get used to always having a light, there are so many uses for it. I love that it only has a two function button so you can just ease on to it or click it on. I have left it in my pocket when I washed and dried my pants and it didn't harm it one bit, just made it cleaner. I have many other lights and if I go out walking at light I will take one more powerful also but for day in and day out, this is the best and cheap too.
By Camohunterdoug
Great mini light
September 21, 2018
Does everything that you could ask for. Have 3 use them everywhere.
By James
Streamlight Microstream
May 11, 2018
These are my go to flashlights to clip in my pocket. Always in use, small and easy to carry.
By Joseph
Sewell, New Jersey
Perfect EDC/Gift Option
February 10, 2018
This is a perfect EDC especially for the price. If you're looking for a bunch of different modes this is not the light for you. It only has the constant and momentary on/off activated via the tail switch. The tail switch can be a bit difficult to depress but this also prevents accidental activations in your pocket. It's powered by a single AAA but really comes to life with a 10440. The reversible pocket clip is a great feature where you can attach it to your hat if needed. I have purchased two of these lights myself and have given them away as gifts. It's a great light for especially for the price.
ProsSingle AAA/10440 powered, disappears in pocket, simple interface, reversible pocket clip
ConsNot many modes
By Joshua
Lake Orion, MI
Great edc
November 28, 2017
I slip this in my pocket when I know I'll be out for the night. Good to have!
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