Streamlight MicroStream USB vs Streamlight ProTac 1L-1AA size comparison
The Streamlight ProTac 1L-1AA is 10 mm (0.39 in) longer than the Streamlight MicroStream USB, and 9 mm wider at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
The Streamlight ProTac 1L-1AA is 10 mm (0.39 in) longer than the Streamlight MicroStream USB, and 9 mm wider at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
Dimensions
| Streamlight MicroStream USB Check price ↗ | Streamlight ProTac 1L-1AA Check price ↗ | |
| Length | 98 mm (3.86 in) | 108 mm (4.25 in)+10 mm |
| Head / width | 15 mm (0.59 in) | 24 mm (0.94 in)+9 mm |
| Body | 15 mm (0.59 in) | 22 mm (0.87 in)+7 mm |
| Weight | 34 g with battery | 71 g listed |
| Battery | Built-in | CR123A / AA |
| Max output | 250 lm | 350 lm |
| Throw | — | 105 m |
| Type | EDC | EDC |
| Price | $41.50 at batteryjunction.com, as of Nov 4, 2026 | $56.45 at batteryjunction.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | batteryjunction.com sourced |
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MicroStream USB vs ProTac 1L-1AA: how they differ
Size and weight
The Streamlight MicroStream USB is the shorter light: 98 mm (3.86 in) against 108 mm (4.25 in), a difference of 10 mm (9%). At its widest point the Streamlight MicroStream USB is 9 mm slimmer (15 vs 24 mm). Weights are published on different bases (Streamlight MicroStream USB: 34 g with battery; Streamlight ProTac 1L-1AA: 71 g listed), so they are not directly comparable.
Brightness and throw
The Streamlight ProTac 1L-1AA is rated brighter: 350 lm maximum vs 250 lm for the Streamlight MicroStream USB, 40% more.
Battery
The Streamlight MicroStream USB runs on a built-in rechargeable battery; the Streamlight ProTac 1L-1AA runs on removable CR123A / AA batteries. Only the Streamlight ProTac 1L-1AA lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Streamlight MicroStream USB was $41.50 at batteryjunction.com and the Streamlight ProTac 1L-1AA $56.45 at batteryjunction.com, so the Streamlight MicroStream USB cost $14.95 less. Prices change often, so check the current price before you buy.
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Streamlight MicroStream USB if you want a shorter light (10 mm shorter), a slimmer profile (9 mm narrower) and a built-in battery with no separate cell to buy. Choose the Streamlight ProTac 1L-1AA if you want more output (350 lm vs 250 lm) and a removable cell you can swap. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Streamlight MicroStream USB Check price ↗ Streamlight ProTac 1L-1AA
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
MicroStream USB vs ProTac 1L-1AA FAQ
Which is smaller, the Streamlight MicroStream USB or the Streamlight ProTac 1L-1AA?
The Streamlight MicroStream USB is the shorter light: 98 mm (3.86 in) against 108 mm (4.25 in), a difference of 10 mm (9%). At its widest point the Streamlight MicroStream USB is 9 mm slimmer (15 vs 24 mm). Weights are published on different bases (Streamlight MicroStream USB: 34 g with battery; Streamlight ProTac 1L-1AA: 71 g listed), so they are not directly comparable.
Which is brighter, the Streamlight MicroStream USB or the Streamlight ProTac 1L-1AA?
The Streamlight ProTac 1L-1AA is rated brighter: 350 lm maximum vs 250 lm for the Streamlight MicroStream USB, 40% more.
Which is cheaper, the Streamlight MicroStream USB or the Streamlight ProTac 1L-1AA?
When we checked on Nov 4, 2026, the Streamlight MicroStream USB was $41.50 at batteryjunction.com and the Streamlight ProTac 1L-1AA $56.45 at batteryjunction.com, so the Streamlight MicroStream USB cost $14.95 less. Prices change often, so check the current price before you buy.
Do the Streamlight MicroStream USB and Streamlight ProTac 1L-1AA use the same battery?
The Streamlight MicroStream USB runs on a built-in rechargeable battery; the Streamlight ProTac 1L-1AA runs on removable CR123A / AA batteries. Only the Streamlight ProTac 1L-1AA lets you swap in a charged spare.
Compare Streamlight MicroStream USB with similar lights
Compare Streamlight ProTac 1L-1AA with similar lights
More
Sources
- Streamlight MicroStream USB: specs from manufacturer published specs as listed by batteryjunction.com. Price $41.50 from batteryjunction.com, checked Nov 4, 2026; prices change often.
- Streamlight ProTac 1L-1AA: specs from manufacturer published specs as listed by batteryjunction.com. Price $56.45 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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