Streamlight MicroStream Penlight Flashlight

Streamlight MicroStream Penlight Flashlight

Streamlight MicroStream pocket flashlight is now brighter than ever before, rated at 45 lumens. The Microstream is conveniently portable, measuring only 3.5″ long. Utilizing state-of-the-art C4® LED technology, the MicroStream is compact and lightweight with optimized output and run time. Streamlight MicroStream has a unique two-way pocket clip that can be attached to a pocket or to a cap for hands-free lighting……From $17.95

  • Output: 45 lumens
  • Battery Type: AAA alkaline (1)
  • Run Time: 2.25 hrs
  • Feature: compact penlight flashlight; can be clipped to a hat for hands-free light
  • Dimensions: 3.5″L

$30.90 $17.95


Engraving Options

BrightGuy offers custom laser engraving on a wide variety of lighting products. Laser engraved flashlights make great corporate or promotional giveaways, and can make any gift unique.

Please allow up to 4 additional business days for processing orders that include laser engraved products. BrightGuy is not responsible for incorrectly entered requests, so please review your entries before submission. Any items with custom laser engraving are final sale – they cannot be returned. Requests that include explicit or objectionable content will not be honored.

Choose from the following fonts:
Helvetica Bold
Times Italic
Arial Bold

If you choose to upload a logo, we accept .jpg, .pdf, and .eps files. Vector files will produce the best results. The minimum image resolution is 100 DPI; 300 DPI is preferred. You will be emailed a proof to approve before your order is completed.

If you have any questions concerning our custom laser engraving program, please contact us at or 1-888-881-1908

Please complete the form with as much detail as possible. We will respond to your request with a formal price quote, product information, and shipping quote.

NOTE: Engraving on silver flashlights does not show up well. We recommend choosing a different color.

Engraving Location


What’s included: Streamlight MicroStream flashlight, two-way pocket-hat clip, break-away neck lanyard and battery

Laser Engraving – This flashlight can be laser engraved. Great promotional flashlight for trade show give-aways, customer appreciation gifts or employee gifts.

Features of Streamlight MicroStream LED flashlight, 66318:
• white C4® LED with a 30,000 hour lifetime
    ▹ 45 lumens
    ▹ runs for 2.25 hours on a single AAA battery
    ▹ 41 meter beam range (134 feet)
• O-ring sealed
• water resistant, IPX4 rated
• pushbutton tail switch for constant on/off and momentary on
• runs on a single AAA alkaline battery
• measures 3.5″ long x 0.6″ diameter
• weighs 1.04 oz with battery
• unique pocket clip design allows you to clip the MicroStream to a hat
• machined aluminum body with Type II MIL-Spec black anodized finish
• unbreakable polycarbonate lens


Battery#: AAA alkaline (1)
Dimensions: 3.5″L
Lamp Type: C4® white LED
Light Output: 45 lumens
Weight w/batteries: 1.04 oz
Run Time: 2.25 hrs
Focus Type: Fixed
On/Off: Pushbutton, Tail-Cap
Material: Anodized aluminum
Origin: Made in China
Warranty: Limited lifetime warranty from Streamlight

Product Video

Part Numbers and UPC Codes

P/N: 66318; UPC: 080926663183; Streamlight MicroStream, 45 lumens – Black
P/N: 66323; UPC: 080926663237; Streamlight MicroStream, 45 lumens – Red

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Streamlight MicroStream Penlight Flashlight

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    Please feel free to call us directly at 440-942-8318 or toll free 1-888-881-1908.

Streamlight MicroStream Penlight Flashlight