Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Questions & Answers
Customer Reviews
Helpful Positive Review
awesome by Legacy Reviewer, August 17, 2013
great little light. perfect for keeping in your pocket or glove box.
1/1 found this helpful
Helpful Positive Review
I had two microstreams and during hurricane Irene without lights they hung around my wifes and granddaughters necks very handy I never got them back. Go figure. I purchased three more and the clip has been improved to slide on a hat I also hold it in...
Read More...
1/1 found this helpful
Helpful Positive Review
Great Little Light by Legacy Reviewer, Verified Owner, December 20, 2009
This light is extremely bright for it's size. I use it at work and several of my coworkers now own one. I like it because it is small enough to carry in my shirt pocket. I have purchased several of them for stocking stuffers. Pros: Extremely brigh...
Read More...
1/1 found this helpful
Helpful Positive Review
Terrific little light! by Legacy Reviewer, Verified Owner, August 20, 2009
Small, super bright, lightwethThis little light throws a beam of light you'd expect from a much bigger flashlight. I was really impressed with how bright and convenient it was to use. The soft rubber on/off switch is easy to find and it's so lightwei...
Read More...
1/1 found this helpful
Helpful Negative Review
Buyer Beware! This is not at all what the product description says it is. Desc. says, "Output/Runtime High: 155 lumens; 3,300 candela peak beam intensity; runs 2 hours. Output/Runtime Low: 11 lumens; 200 candela peak beam intensity; runs 36 hours. ...
Read More...
4/9 found this helpful
Most Recent Reviews
Mini light by DanF, Verified Owner, June 12, 2024
Easy to carry, you can clip it to your hat, light could be a little brighter but it's okay.
Read All 26 Reviews
Color: Black Beam Color: White Light Output: 35 lumensBulb Type: LED Additional Features: Standard Quantity: 1 Battery Type: AAA

Code: SQ-FL-Micro-66318

MPN: 66318

UPC: 080926663183

List: $38.89Save 13%
$33.79

Product Info for Streamlight MicroStream LED Pen Light w/ 45 Lumen Output

StreamLight MicroStream LED Penlight is one of the world's brightest and most durable key-chain lights. Streamlight has built this LED flashlight with a high flux LED, with Proprietary Micro Optical Systems that have "Battery-Booster" electronics to provide a super-bright beam. The MOS is specially optimized for output and runtime, giving you a light when you need it most. The Streamlight MicroStream Pen Lights feature a powerful super-bright 1/2 watt, 30,000 hour high flux LED.image

This small but handy flashlight by Streamlight sports many innovative features. The Stream-Light MicroStream Pen Light features an internal polymer body liner and shockproof switch housing for operation under the most extreme conditions. All Micro-Stream Pen Lights by Streamlight are o-ring sealed and feature unbreakable polycarbonate lens. The outer body is composed of corrosion and waterproof Type II MIL-SPEC abrasion and corrosion-resistant anodized aircraft aluminum. In addition, this Streamlight has been drop tested above industry standard of six feet, as well as having an unbreakable pocket clip. If you want the power of Streamlight, without the cost and bulk, Streamlight MicroStream Pen Lights are your choice.

Specifications for Streamlight MicroStream LED Pen Light w/ 45 Lumen Output:

Manufacturer: Streamlight
Flashlight Application: Everyday Carry
Color: Black
Beam Color: White
Light Output: 35 lumens
Battery Life: 2.25 hours
Bulb Type: LED
Beam Distance: 41 m
Length: 3.6 in
Weight: 1.1 oz
Water Resistance Level: Water Resistant
Additional Features: Standard
Quantity: 1
Battery Type: AAA

Features of Stream-Light Micro Stream Pen Flashlights:

  • Proprietary Micro Optical System (MOS)
  • Up to 45 lumen output for up to 1.5 hrs runtime
  • Super-bright .5 watt high flux LED
  • Internal polymer body liner and shock proof switch housing
  • Rubber push button tail cap switch
  • O-ring sealed
  • Unbreakable polycarbonate lens
  • Corrosion and water proof construction
  • Type II MIL-SPEC abrasion and corrosion-resistant anodized aircraft aluminum
  • Shock-proof - Drop test verified above the industry standard of six feet
  • Unbreakable pocket clip

Package Contents:

  • Streamlight MicroStream LED Pen Light w/ 45 Lumen Output

Streamlight MicroStream LED Pen Light w/ 45 Lumen Output Orderable Models

List of Orderable Models

  • Streamlight MicroStream LED Pen Light w/ 45 Lumen Output, 66318 , MPN: 66318 , UPC: 080926663183 , Code: SQ-FL-Micro-66318

Streamlight MicroStream LED Pen Light w/ 45 Lumen Output Unavailable & Discontinued Models

List of Unorderable Models

  • Streamlight OPMOD MicroStream LED Pen Flashlight, AAA, 45 Lumens , MPN: 66318OPMOD-KIT2023 , Code: SQ-FL-Micro-66318-66318OPMOD-KIT2023
Compare (0)