Fenix E01 V2.0 AAA vs Streamlight MicroStream USB size comparison
The Streamlight MicroStream USB is 31.5 mm (1.24 in) longer than the Fenix E01 V2.0 AAA, with about the same max diameter/width. Weights are published on different bases (with battery vs without battery), so compare them with care.
The Streamlight MicroStream USB is 31.5 mm (1.24 in) longer than the Fenix E01 V2.0 AAA, with about the same max diameter/width. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Fenix E01 V2.0 AAA Check price ↗ | Streamlight MicroStream USB Check price ↗ | |
| Length | 66.5 mm (2.62 in) | 98 mm (3.86 in)+31.5 mm |
| Head / width | 15 mm (0.59 in) | 15 mm (0.59 in)same |
| Body | 14 mm (0.55 in) | 15 mm (0.59 in)+1 mm |
| Weight | 13 g without battery | 34 g with battery |
| Battery | AAA | Built-in |
| Max output | 100 lm | 250 lm |
| Throw | 35 m | — |
| Type | EDC | EDC |
| Price | $12.95 at fenixlighting.com, as of Nov 4, 2026 | $41.50 at batteryjunction.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced | batteryjunction.com sourced |
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E01 V2.0 AAA vs MicroStream USB: how they differ
Size and weight
The Fenix E01 V2.0 AAA is the shorter light: 66.5 mm (2.62 in) against 98 mm (3.86 in), a difference of 31.5 mm (32%). At their widest points they are about the same (15 vs 15 mm). Weights are published on different bases (Fenix E01 V2.0 AAA: 13 g without battery; Streamlight MicroStream USB: 34 g with battery), so they are not directly comparable.
Brightness and throw
The Streamlight MicroStream USB is rated brighter: 250 lm maximum vs 100 lm for the Fenix E01 V2.0 AAA, 150% more.
Battery
The Fenix E01 V2.0 AAA runs on a removable AAA battery; the Streamlight MicroStream USB runs on a built-in rechargeable battery. Only the Fenix E01 V2.0 AAA lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Fenix E01 V2.0 AAA was $12.95 at fenixlighting.com and the Streamlight MicroStream USB $41.50 at batteryjunction.com, so the Fenix E01 V2.0 AAA cost $28.55 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 Fenix E01 V2.0 AAA if you want a shorter light (31.5 mm shorter) and a removable cell you can swap. Choose the Streamlight MicroStream USB if you want more output (250 lm vs 100 lm) and a built-in battery with no separate cell to buy. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix E01 V2.0 AAA Check price ↗ Streamlight MicroStream USB
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
E01 V2.0 AAA vs MicroStream USB FAQ
Which is smaller, the Fenix E01 V2.0 AAA or the Streamlight MicroStream USB?
The Fenix E01 V2.0 AAA is the shorter light: 66.5 mm (2.62 in) against 98 mm (3.86 in), a difference of 31.5 mm (32%). At their widest points they are about the same (15 vs 15 mm). Weights are published on different bases (Fenix E01 V2.0 AAA: 13 g without battery; Streamlight MicroStream USB: 34 g with battery), so they are not directly comparable.
Which is brighter, the Fenix E01 V2.0 AAA or the Streamlight MicroStream USB?
The Streamlight MicroStream USB is rated brighter: 250 lm maximum vs 100 lm for the Fenix E01 V2.0 AAA, 150% more.
Which is cheaper, the Fenix E01 V2.0 AAA or the Streamlight MicroStream USB?
When we checked on Nov 4, 2026, the Fenix E01 V2.0 AAA was $12.95 at fenixlighting.com and the Streamlight MicroStream USB $41.50 at batteryjunction.com, so the Fenix E01 V2.0 AAA cost $28.55 less. Prices change often, so check the current price before you buy.
Do the Fenix E01 V2.0 AAA and Streamlight MicroStream USB use the same battery?
The Fenix E01 V2.0 AAA runs on a removable AAA battery; the Streamlight MicroStream USB runs on a built-in rechargeable battery. Only the Fenix E01 V2.0 AAA lets you swap in a charged spare.
Compare Fenix E01 V2.0 AAA with similar lights
Compare Streamlight MicroStream USB with similar lights
More
Sources
- Fenix E01 V2.0 AAA: specs from Fenix product page (manufacturer). Price $12.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- 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.
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