RovyVon S3 Pro vs ThruNite TC20 V3 size comparison
The ThruNite TC20 V3 is 6 mm (0.24 in) longer than the RovyVon S3 Pro, and 6 mm wider at its widest point. Weights are published on different bases (with battery vs listed), so compare them with care.
The ThruNite TC20 V3 is 6 mm (0.24 in) longer than the RovyVon S3 Pro, and 6 mm wider at its widest point. Weights are published on different bases (with battery vs listed), so compare them with care.
Dimensions
| RovyVon S3 Pro Check price ↗ | ThruNite TC20 V3 Check price ↗ | |
| Length | 119 mm (4.69 in) | 125 mm (4.92 in)+6 mm |
| Head / width | 29 mm (1.14 in) | 35 mm (1.38 in)+6 mm |
| Body | 29 mm (1.14 in) | 28 mm (1.10 in)−1 mm |
| Weight | 150 g listed | 197 g with battery |
| Battery | 18650 | 21700 |
| Max output | 2,800 lm | 4,720 lm |
| Throw | 130 m | — |
| Type | EDC | EDC |
| Price | from $79.95 at batteryjunction.com, as of Nov 4, 2026 | $79.95 at batteryjunction.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | batteryjunction.com sourced |
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S3 Pro vs TC20 V3: how they differ
Size and weight
The RovyVon S3 Pro is the shorter light: 119 mm (4.69 in) against 125 mm (4.92 in), a difference of 6 mm (5%). At its widest point the RovyVon S3 Pro is 6 mm slimmer (29 vs 35 mm). Weights are published on different bases (RovyVon S3 Pro: 150 g listed; ThruNite TC20 V3: 197 g with battery), so they are not directly comparable.
Brightness and throw
The ThruNite TC20 V3 is rated brighter: 4,720 lm maximum vs 2,800 lm for the RovyVon S3 Pro, 69% more.
Battery
The RovyVon S3 Pro runs on a removable 18650 battery; the ThruNite TC20 V3 runs on a removable 21700 battery. For scale, a 18650 cell is about 18 × 65 mm and a 21700 about 21 × 70 mm (nominal).
Price
When we checked on Nov 4, 2026, the RovyVon S3 Pro was from $79.95 at batteryjunction.com and the ThruNite TC20 V3 $79.95 at batteryjunction.com. 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 RovyVon S3 Pro if you want a shorter light (6 mm shorter) and a slimmer profile (6 mm narrower). Choose the ThruNite TC20 V3 if you want more output (4,720 lm vs 2,800 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ RovyVon S3 Pro Check price ↗ ThruNite TC20 V3
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
S3 Pro vs TC20 V3 FAQ
Which is smaller, the RovyVon S3 Pro or the ThruNite TC20 V3?
The RovyVon S3 Pro is the shorter light: 119 mm (4.69 in) against 125 mm (4.92 in), a difference of 6 mm (5%). At its widest point the RovyVon S3 Pro is 6 mm slimmer (29 vs 35 mm). Weights are published on different bases (RovyVon S3 Pro: 150 g listed; ThruNite TC20 V3: 197 g with battery), so they are not directly comparable.
Which is brighter, the RovyVon S3 Pro or the ThruNite TC20 V3?
The ThruNite TC20 V3 is rated brighter: 4,720 lm maximum vs 2,800 lm for the RovyVon S3 Pro, 69% more.
Which is cheaper, the RovyVon S3 Pro or the ThruNite TC20 V3?
When we checked on Nov 4, 2026, the RovyVon S3 Pro was from $79.95 at batteryjunction.com and the ThruNite TC20 V3 $79.95 at batteryjunction.com. Prices change often, so check the current price before you buy.
Do the RovyVon S3 Pro and ThruNite TC20 V3 use the same battery?
The RovyVon S3 Pro runs on a removable 18650 battery; the ThruNite TC20 V3 runs on a removable 21700 battery. For scale, a 18650 cell is about 18 × 65 mm and a 21700 about 21 × 70 mm (nominal).
Compare RovyVon S3 Pro with similar lights
Compare ThruNite TC20 V3 with similar lights
More
Sources
- RovyVon S3 Pro: specs from manufacturer published specs as listed by batteryjunction.com. Price from $79.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
- ThruNite TC20 V3: specs from manufacturer published specs as listed by batteryjunction.com. Price $79.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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