Fenix E12 V3.0 vs Streamlight MicroStream USB size comparison
The Streamlight MicroStream USB is 16.5 mm (0.65 in) longer than the Fenix E12 V3.0, and 4.3 mm narrower at its widest point. It is 20 g lighter (with battery).
The Streamlight MicroStream USB is 16.5 mm (0.65 in) longer than the Fenix E12 V3.0, and 4.3 mm narrower at its widest point. It is 20 g lighter (with battery).
Dimensions
| Fenix E12 V3.0 Check price ↗ | Streamlight MicroStream USB Check price ↗ | |
| Length | 81.5 mm (3.21 in) | 98 mm (3.86 in)+16.5 mm |
| Head / width | 19.3 mm (0.76 in) | 15 mm (0.59 in)−4.3 mm |
| Body | 17.4 mm (0.69 in) | 15 mm (0.59 in)−2.4 mm |
| Weight | 53.9 g with battery | 34 g with battery−20 g |
| Battery | AA | Built-in |
| Max output | 200 lm | 250 lm |
| Throw | 78 m | — |
| Type | EDC | EDC |
| Price | $29.95 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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E12 V3.0 vs MicroStream USB: how they differ
Size and weight
The Fenix E12 V3.0 is the shorter light: 81.5 mm (3.21 in) against 98 mm (3.86 in), a difference of 16.5 mm (17%). At its widest point the Streamlight MicroStream USB is 4.3 mm slimmer (15 vs 19.3 mm). The Streamlight MicroStream USB is 20 g lighter (34 g vs 53.9 g, with battery).
Brightness and throw
The Streamlight MicroStream USB is rated brighter: 250 lm maximum vs 200 lm for the Fenix E12 V3.0, 25% more.
Battery
The Fenix E12 V3.0 runs on a removable AA battery; the Streamlight MicroStream USB runs on a built-in rechargeable battery. Only the Fenix E12 V3.0 lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Fenix E12 V3.0 was $29.95 at fenixlighting.com and the Streamlight MicroStream USB $41.50 at batteryjunction.com, so the Fenix E12 V3.0 cost $11.55 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 E12 V3.0 if you want a shorter light (16.5 mm shorter) and a removable cell you can swap. Choose the Streamlight MicroStream USB if you want a slimmer profile (4.3 mm narrower), less weight (20 g lighter), more output (250 lm vs 200 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 E12 V3.0 Check price ↗ Streamlight MicroStream USB
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E12 V3.0 vs MicroStream USB FAQ
Which is smaller, the Fenix E12 V3.0 or the Streamlight MicroStream USB?
The Fenix E12 V3.0 is the shorter light: 81.5 mm (3.21 in) against 98 mm (3.86 in), a difference of 16.5 mm (17%). At its widest point the Streamlight MicroStream USB is 4.3 mm slimmer (15 vs 19.3 mm). The Streamlight MicroStream USB is 20 g lighter (34 g vs 53.9 g, with battery).
Which is brighter, the Fenix E12 V3.0 or the Streamlight MicroStream USB?
The Streamlight MicroStream USB is rated brighter: 250 lm maximum vs 200 lm for the Fenix E12 V3.0, 25% more.
Which is cheaper, the Fenix E12 V3.0 or the Streamlight MicroStream USB?
When we checked on Nov 4, 2026, the Fenix E12 V3.0 was $29.95 at fenixlighting.com and the Streamlight MicroStream USB $41.50 at batteryjunction.com, so the Fenix E12 V3.0 cost $11.55 less. Prices change often, so check the current price before you buy.
Do the Fenix E12 V3.0 and Streamlight MicroStream USB use the same battery?
The Fenix E12 V3.0 runs on a removable AA battery; the Streamlight MicroStream USB runs on a built-in rechargeable battery. Only the Fenix E12 V3.0 lets you swap in a charged spare.
Compare Fenix E12 V3.0 with similar lights
Compare Streamlight MicroStream USB with similar lights
More
Sources
- Fenix E12 V3.0: specs from Fenix product page (manufacturer). Price $29.95 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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