The Streamlight MicroStream USB (SKU 66601, black) is a genuinely tiny rechargeable EDC torch — 3.87 inches long and just 1.2 oz — producing 250 lumens output and 1,150 candela peak beam intensity for a 68 metre beam. A 50-lumen low runs for 3.5 hours.
The two-way pocket clip doubles as a hat-brim clip for hands-free light, and a charge indicator shows red while charging and green when the cell is full. The integrated 350 mAh lithium-ion cell recharges over micro-USB in about 4 hours, in an anodised machined-aluminium body rated IPX4 and impact tested to 1 metre.
How It Compares
The MicroStream is the smallest torch Streamlight makes in this line. For twice the output in a slightly larger body see the Streamlight MacroStream USB EDC flashlight, and the same MicroStream in a tan finish is the Streamlight MicroStream USB EDC flashlight in coyote. Browse the whole Streamlight handheld torch range or every handheld torch we stock.
Ideal For
- Minimal everyday carry on a keyring or in a coat pocket
- Hands-free hat-brim lighting for kennels, stables and yard jobs
- A backup torch in a range bag, stalking kit or glovebox
- Dog walking and short evening errands
Key Features
- 250 lumens output and 1,150 candela peak beam intensity; 68 metre beam, 1.5 hour runtime
- 50 lumen low with 250 candela and 3.5 hours of runtime
- Two-way pocket clip that doubles as a hat-brim clip
- Micro-USB rechargeable with red/green charge indicator, 4 hour charge
- 3.87 in / 1.2 oz; machined anodised aluminium, IPX4, 1 metre impact tested
Technical Specifications
| Output |
250 lumens / 1,150 candela / 68 m (1.5 h runtime); 50 lumens / 250 candela / 31 m (3.5 h runtime) |
| Battery |
Integrated 350 mAh lithium-ion cell, micro-USB rechargeable (4 hour charge) |
| Length / Weight |
3.87 in (9.8 cm) / 1.2 oz (34 g) |
| Housing / Finish |
Machined anodised aluminium, black |
| Durability |
IPX4 water resistant; 1 metre impact resistance |
| SKU / MPN / UPC |
66601 / 66601 / 080926666016 |
| Warranty |
Streamlight Limited Lifetime |
What's Included
- Streamlight MicroStream USB flashlight (black)
- 5 in micro-USB charging cord
- Lanyard and removable pocket clip
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and Streamlight's limited lifetime warranty.
Frequently Asked Questions
How bright is the Streamlight MicroStream USB and how far does it reach?
The Streamlight MicroStream USB produces 250 lumens output and 1,150 candela peak beam intensity, which gives a beam distance of 68 metres on high.
What runtime does the Streamlight MicroStream USB give?
The Streamlight MicroStream USB runs for 1.5 hours on its 250 lumen high and 3.5 hours on its 50 lumen low.
How small is the Streamlight MicroStream USB?
The Streamlight MicroStream USB is 3.87 inches long and weighs 1.2 oz, so it carries easily in a pocket or on a keyring lanyard.
Is the Streamlight MicroStream USB rechargeable, and how is it charged?
The Streamlight MicroStream USB is rechargeable over micro-USB using the supplied cord, takes about 4 hours for a full charge, and shows red while charging and green when it is full.
Should I buy the Streamlight MicroStream or the MacroStream?
The Streamlight MicroStream USB is the ultra-compact 250 lumen option at 1.2 oz, while the Streamlight MacroStream USB doubles the output to 500 lumens in a slightly larger 2.2 oz body.
