Sofirn SC33 vs ThruNite TC20 V3 size comparison
The ThruNite TC20 V3 is 6 mm (0.24 in) shorter than the Sofirn SC33, and 3 mm wider at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
The ThruNite TC20 V3 is 6 mm (0.24 in) shorter than the Sofirn SC33, and 3 mm wider at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Sofirn SC33 Check price ↗ | ThruNite TC20 V3 Check price ↗ | |
| Length | 131 mm (5.16 in) | 125 mm (4.92 in)−6 mm |
| Head / width | 32 mm (1.26 in) | 35 mm (1.38 in)+3 mm |
| Body | — | 28 mm (1.10 in) |
| Weight | 110 g without battery | 197 g with battery |
| Battery | 21700 | 21700 |
| Max output | 5,200 lm | 4,720 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | from $41.99 at flashlightgo.com, as of Nov 4, 2026 | $79.95 at batteryjunction.com, as of Nov 4, 2026 |
| Source | flashlightgo.com sourced Only head diameter listed | batteryjunction.com sourced |
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SC33 vs TC20 V3: how they differ
Size and weight
The ThruNite TC20 V3 is the shorter light: 125 mm (4.92 in) against 131 mm (5.16 in), a difference of 6 mm (5%). At its widest point the Sofirn SC33 is 3 mm slimmer (32 vs 35 mm). Weights are published on different bases (Sofirn SC33: 110 g without battery; ThruNite TC20 V3: 197 g with battery), so they are not directly comparable.
Brightness and throw
The Sofirn SC33 is rated brighter: 5,200 lm maximum vs 4,720 lm for the ThruNite TC20 V3, 10% more.
Battery
Both run on a removable 21700 battery, so spare cells work in either light.
Price
When we checked on Nov 4, 2026, the Sofirn SC33 was from $41.99 at flashlightgo.com and the ThruNite TC20 V3 $79.95 at batteryjunction.com, so the Sofirn SC33 cost $37.96 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 Sofirn SC33 if you want a slimmer profile (3 mm narrower) and more output (5,200 lm vs 4,720 lm). Choose the ThruNite TC20 V3 if you want a shorter light (6 mm shorter). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Sofirn SC33 Check price ↗ ThruNite TC20 V3
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
SC33 vs TC20 V3 FAQ
Which is smaller, the Sofirn SC33 or the ThruNite TC20 V3?
The ThruNite TC20 V3 is the shorter light: 125 mm (4.92 in) against 131 mm (5.16 in), a difference of 6 mm (5%). At its widest point the Sofirn SC33 is 3 mm slimmer (32 vs 35 mm). Weights are published on different bases (Sofirn SC33: 110 g without battery; ThruNite TC20 V3: 197 g with battery), so they are not directly comparable.
Which is brighter, the Sofirn SC33 or the ThruNite TC20 V3?
The Sofirn SC33 is rated brighter: 5,200 lm maximum vs 4,720 lm for the ThruNite TC20 V3, 10% more.
Which is cheaper, the Sofirn SC33 or the ThruNite TC20 V3?
When we checked on Nov 4, 2026, the Sofirn SC33 was from $41.99 at flashlightgo.com and the ThruNite TC20 V3 $79.95 at batteryjunction.com, so the Sofirn SC33 cost $37.96 less. Prices change often, so check the current price before you buy.
Do the Sofirn SC33 and ThruNite TC20 V3 use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Sofirn SC33 with similar lights
Compare ThruNite TC20 V3 with similar lights
More
Sources
- Sofirn SC33: specs from manufacturer published specs as listed by flashlightgo.com. Drawing: outline from published specs. Price from $41.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
- ThruNite TC20 V3: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. Price $79.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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