Olight ArkTac vs Sofirn SC33 size comparison
The Sofirn SC33 is 4.5 mm (0.18 in) shorter than the Olight ArkTac, and 3 mm wider at its widest point. Weights are published on different bases (without battery vs with battery), so compare them with care.
The Sofirn SC33 is 4.5 mm (0.18 in) shorter than the Olight ArkTac, and 3 mm wider at its widest point. Weights are published on different bases (without battery vs with battery), so compare them with care.
Dimensions
| Olight ArkTac Check price ↗ | Sofirn SC33 Check price ↗ | |
| Length | 135.5 mm (5.33 in) | 131 mm (5.16 in)−4.5 mm |
| Head / width | 29 mm (1.14 in) | 32 mm (1.26 in)+3 mm |
| Thickness | 17 mm (0.67 in) | — |
| Weight | 136 g with battery | 110 g without battery |
| Battery | Built-in | 21700 |
| Max output | 1,700 lm | 5,200 lm |
| Throw | 205 m | — |
| Type | EDC | EDC |
| Price | $119.99 at olight.com, as of Nov 4, 2026 | from $41.99 at flashlightgo.com, as of Nov 4, 2026 |
| Source | olight.com sourced | flashlightgo.com sourced Only head diameter listed |
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ArkTac vs SC33: how they differ
Size and weight
The Sofirn SC33 is the shorter light: 131 mm (5.16 in) against 135.5 mm (5.33 in), a difference of 4.5 mm (3%). At its widest point the Olight ArkTac is 3 mm slimmer (29 vs 32 mm). Weights are published on different bases (Olight ArkTac: 136 g with battery; Sofirn SC33: 110 g without battery), so they are not directly comparable.
Brightness and throw
The Sofirn SC33 is rated brighter: 5,200 lm maximum vs 1,700 lm for the Olight ArkTac, 206% more.
Battery
The Olight ArkTac runs on a built-in rechargeable battery; the Sofirn SC33 runs on a removable 21700 battery. Only the Sofirn SC33 lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Olight ArkTac was $119.99 at olight.com and the Sofirn SC33 from $41.99 at flashlightgo.com, so the Sofirn SC33 cost $78.00 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 ArkTac if you want a slimmer profile (3 mm narrower) and a built-in battery with no separate cell to buy. Choose the Sofirn SC33 if you want a shorter light (4.5 mm shorter), more output (5,200 lm vs 1,700 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 ↗ Olight ArkTac Check price ↗ Sofirn SC33
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ArkTac vs SC33 FAQ
Which is smaller, the Olight ArkTac or the Sofirn SC33?
The Sofirn SC33 is the shorter light: 131 mm (5.16 in) against 135.5 mm (5.33 in), a difference of 4.5 mm (3%). At its widest point the Olight ArkTac is 3 mm slimmer (29 vs 32 mm). Weights are published on different bases (Olight ArkTac: 136 g with battery; Sofirn SC33: 110 g without battery), so they are not directly comparable.
Which is brighter, the Olight ArkTac or the Sofirn SC33?
The Sofirn SC33 is rated brighter: 5,200 lm maximum vs 1,700 lm for the Olight ArkTac, 206% more.
Which is cheaper, the Olight ArkTac or the Sofirn SC33?
When we checked on Nov 4, 2026, the Olight ArkTac was $119.99 at olight.com and the Sofirn SC33 from $41.99 at flashlightgo.com, so the Sofirn SC33 cost $78.00 less. Prices change often, so check the current price before you buy.
Do the Olight ArkTac and Sofirn SC33 use the same battery?
The Olight ArkTac runs on a built-in rechargeable battery; the Sofirn SC33 runs on a removable 21700 battery. Only the Sofirn SC33 lets you swap in a charged spare.
Compare Olight ArkTac with similar lights
Compare Sofirn SC33 with similar lights
More
Sources
- Olight ArkTac: specs from Olight product page (manufacturer). Price $119.99 from olight.com, checked Nov 4, 2026; prices change often.
- Sofirn SC33: specs from manufacturer published specs as listed by flashlightgo.com. Price from $41.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
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