Nitecore EDC33 vs Sofirn SC31 Pro size comparison
The Sofirn SC31 Pro is 1.9 mm (0.07 in) longer than the Nitecore EDC33, with about the same max diameter/width. Weights are published on different bases (without battery vs with battery), so compare them with care.
The Sofirn SC31 Pro is 1.9 mm (0.07 in) longer than the Nitecore EDC33, with about the same max diameter/width. Weights are published on different bases (without battery vs with battery), so compare them with care.
Dimensions
| Nitecore EDC33 Check price ↗ | Sofirn SC31 Pro Check price ↗ | |
| Length | 115.6 mm (4.55 in) | 117.5 mm (4.63 in)+1.9 mm |
| Head / width | 25.4 mm (1.00 in) | 25.4 mm (1.00 in)same |
| Body | 24 mm (0.94 in) | — |
| Weight | 121 g with battery | 59 g without battery |
| Battery | 18650 (built-in) | 18650 |
| Max output | 4,000 lm | 2,000 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | $69.95 at batteryjunction.com, as of Nov 4, 2026 | not verified yet |
| Source | charger.nitecore.com sourced 127 g with clip | sofirnlight.com sourced Only head diameter listed |
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EDC33 vs SC31 Pro: how they differ
Size and weight
The Nitecore EDC33 is the shorter light: 115.6 mm (4.55 in) against 117.5 mm (4.63 in), a difference of 1.9 mm (2%). At their widest points they are about the same (25.4 vs 25.4 mm). Weights are published on different bases (Nitecore EDC33: 121 g with battery; Sofirn SC31 Pro: 59 g without battery), so they are not directly comparable.
Brightness and throw
The Nitecore EDC33 is rated brighter: 4,000 lm maximum vs 2,000 lm for the Sofirn SC31 Pro, 100% more.
Battery
The Nitecore EDC33 runs on a built-in rechargeable battery (18650); the Sofirn SC31 Pro runs on a removable 18650 battery. Only the Sofirn SC31 Pro lets you swap in a charged spare.
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Nitecore EDC33 if you want more output (4,000 lm vs 2,000 lm) and a built-in battery with no separate cell to buy. Choose the Sofirn SC31 Pro 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 ↗ Nitecore EDC33 Check price ↗ Sofirn SC31 Pro
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EDC33 vs SC31 Pro FAQ
Which is smaller, the Nitecore EDC33 or the Sofirn SC31 Pro?
The Nitecore EDC33 is the shorter light: 115.6 mm (4.55 in) against 117.5 mm (4.63 in), a difference of 1.9 mm (2%). At their widest points they are about the same (25.4 vs 25.4 mm). Weights are published on different bases (Nitecore EDC33: 121 g with battery; Sofirn SC31 Pro: 59 g without battery), so they are not directly comparable.
Which is brighter, the Nitecore EDC33 or the Sofirn SC31 Pro?
The Nitecore EDC33 is rated brighter: 4,000 lm maximum vs 2,000 lm for the Sofirn SC31 Pro, 100% more.
Do the Nitecore EDC33 and Sofirn SC31 Pro use the same battery?
The Nitecore EDC33 runs on a built-in rechargeable battery (18650); the Sofirn SC31 Pro runs on a removable 18650 battery. Only the Sofirn SC31 Pro lets you swap in a charged spare.
Compare Nitecore EDC33 with similar lights
Compare Sofirn SC31 Pro with similar lights
More
Sources
- Nitecore EDC33: specs from Nitecore product page (manufacturer). Price $69.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
- Sofirn SC31 Pro: specs from manufacturer published specs as listed by sofirnlight.com. No verified price yet.
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