Olight Arkfeld Pro vs Streamlight ProTac 2L-X USB size comparison
The Streamlight ProTac 2L-X USB is 10.6 mm (0.42 in) longer than the Olight Arkfeld Pro, with about the same max diameter/width. It is 14 g heavier (with battery).
Olight Arkfeld Pro: Photo: Olight · Image policy
The Streamlight ProTac 2L-X USB is 10.6 mm (0.42 in) longer than the Olight Arkfeld Pro, with about the same max diameter/width. It is 14 g heavier (with battery).
Dimensions
| Olight Arkfeld Pro Check price ↗ | Streamlight ProTac 2L-X USB Check price ↗ | |
| Length | 120 mm (4.72 in) | 130.6 mm (5.14 in)+10.6 mm |
| Head / width | 27 mm (1.06 in) | 26.9 mm (1.06 in)−0.1 mm |
| Body | — | 23.9 mm (0.94 in) |
| Thickness | 16 mm (0.63 in) | — |
| Weight | 111 g with battery | 125 g with battery+14 g |
| Battery | Built-in | 18650 / 2x CR123A |
| Max output | 1,300 lm | 500 lm |
| Throw | 102 m | — |
| Type | EDC | EDC |
| Price | $89.99 at olight.com, as of Nov 4, 2026 | $83.05 at batteryjunction.com, as of Nov 4, 2026 |
| Source | olight.com sourced | batteryjunction.com sourced |
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Arkfeld Pro vs ProTac 2L-X USB: how they differ
Size and weight
The Olight Arkfeld Pro is the shorter light: 120 mm (4.72 in) against 130.6 mm (5.14 in), a difference of 10.6 mm (8%). At their widest points they are about the same (27 vs 26.9 mm). The Olight Arkfeld Pro is 14 g lighter (111 g vs 125 g, with battery).
Brightness and throw
The Olight Arkfeld Pro is rated brighter: 1,300 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 160% more.
Battery
The Olight Arkfeld Pro runs on a built-in rechargeable battery; the Streamlight ProTac 2L-X USB runs on removable 18650 / 2x CR123A batteries. Only the Streamlight ProTac 2L-X USB lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Olight Arkfeld Pro was $89.99 at olight.com and the Streamlight ProTac 2L-X USB $83.05 at batteryjunction.com, so the Streamlight ProTac 2L-X USB cost $6.94 less. Prices change often, so check the current price before you buy.
Type
Both are EDC lights in our catalog.
Which should you buy?
Choose the Olight Arkfeld Pro if you want a shorter light (10.6 mm shorter), less weight (14 g lighter), more output (1,300 lm vs 500 lm) and a built-in battery with no separate cell to buy. Choose the Streamlight ProTac 2L-X USB if you want a removable cell you can swap. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Olight Arkfeld Pro Check price ↗ Streamlight ProTac 2L-X USB
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Arkfeld Pro vs ProTac 2L-X USB FAQ
Which is smaller, the Olight Arkfeld Pro or the Streamlight ProTac 2L-X USB?
The Olight Arkfeld Pro is the shorter light: 120 mm (4.72 in) against 130.6 mm (5.14 in), a difference of 10.6 mm (8%). At their widest points they are about the same (27 vs 26.9 mm). The Olight Arkfeld Pro is 14 g lighter (111 g vs 125 g, with battery).
Which is brighter, the Olight Arkfeld Pro or the Streamlight ProTac 2L-X USB?
The Olight Arkfeld Pro is rated brighter: 1,300 lm maximum vs 500 lm for the Streamlight ProTac 2L-X USB, 160% more.
Which is cheaper, the Olight Arkfeld Pro or the Streamlight ProTac 2L-X USB?
When we checked on Nov 4, 2026, the Olight Arkfeld Pro was $89.99 at olight.com and the Streamlight ProTac 2L-X USB $83.05 at batteryjunction.com, so the Streamlight ProTac 2L-X USB cost $6.94 less. Prices change often, so check the current price before you buy.
Do the Olight Arkfeld Pro and Streamlight ProTac 2L-X USB use the same battery?
The Olight Arkfeld Pro runs on a built-in rechargeable battery; the Streamlight ProTac 2L-X USB runs on removable 18650 / 2x CR123A batteries. Only the Streamlight ProTac 2L-X USB lets you swap in a charged spare.
Compare Olight Arkfeld Pro with similar lights
Compare Streamlight ProTac 2L-X USB with similar lights
More
Sources
- Olight Arkfeld Pro: specs from Olight product page (manufacturer). Photo from manufacturer: the maker's own product photo with the background removed, scaled to the published length and diameter (Photo: Olight; image policy). Price $89.99 from olight.com, checked Nov 4, 2026; prices change often.
- Streamlight ProTac 2L-X USB: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. Price $83.05 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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