Fenix C7 PRO vs ThruNite TC20 V3 size comparison
The ThruNite TC20 V3 is 24.8 mm (0.98 in) shorter than the Fenix C7 PRO, and 5 mm narrower at its widest point. It is 65 g lighter (with battery).
The ThruNite TC20 V3 is 24.8 mm (0.98 in) shorter than the Fenix C7 PRO, and 5 mm narrower at its widest point. It is 65 g lighter (with battery).
Dimensions
| Fenix C7 PRO Check price ↗ | ThruNite TC20 V3 Check price ↗ | |
| Length | 149.8 mm (5.90 in) | 125 mm (4.92 in)−24.8 mm |
| Head / width | 40 mm (1.57 in) | 35 mm (1.38 in)−5 mm |
| Body | 28.5 mm (1.12 in) | 28 mm (1.10 in)−0.5 mm |
| Weight | 262 g with battery | 197 g with battery−65 g |
| Battery | 21700 | 21700 |
| Max output | 4,600 lm | 4,720 lm |
| Throw | 339 m | — |
| Type | Work light | EDC |
| Price | $89.95 at fenixlighting.com, as of Nov 4, 2026 | $79.95 at batteryjunction.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced | batteryjunction.com sourced |
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
C7 PRO vs TC20 V3: how they differ
Size and weight
The ThruNite TC20 V3 is the shorter light: 125 mm (4.92 in) against 149.8 mm (5.90 in), a difference of 24.8 mm (17%). At its widest point the ThruNite TC20 V3 is 5 mm slimmer (35 vs 40 mm). The ThruNite TC20 V3 is 65 g lighter (197 g vs 262 g, with battery).
Brightness and throw
The ThruNite TC20 V3 is rated brighter: 4,720 lm maximum vs 4,600 lm for the Fenix C7 PRO, 3% 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 Fenix C7 PRO was $89.95 at fenixlighting.com and the ThruNite TC20 V3 $79.95 at batteryjunction.com, so the ThruNite TC20 V3 cost $10.00 less. Prices change often, so check the current price before you buy.
Type
The Fenix C7 PRO is listed as work light and the ThruNite TC20 V3 as edc, so they suit different jobs.
Which should you buy?
Choose the ThruNite TC20 V3 if you want a shorter light (24.8 mm shorter), a slimmer profile (5 mm narrower) and less weight (65 g lighter). On the specs we track, the ThruNite TC20 V3 is ahead or level everywhere; the Fenix C7 PRO makes sense mainly if its price, interface or a feature we don't track suits you better. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix C7 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
C7 PRO vs TC20 V3 FAQ
Which is smaller, the Fenix C7 PRO or the ThruNite TC20 V3?
The ThruNite TC20 V3 is the shorter light: 125 mm (4.92 in) against 149.8 mm (5.90 in), a difference of 24.8 mm (17%). At its widest point the ThruNite TC20 V3 is 5 mm slimmer (35 vs 40 mm). The ThruNite TC20 V3 is 65 g lighter (197 g vs 262 g, with battery).
Which is brighter, the Fenix C7 PRO or the ThruNite TC20 V3?
The ThruNite TC20 V3 is rated brighter: 4,720 lm maximum vs 4,600 lm for the Fenix C7 PRO, 3% more.
Which is cheaper, the Fenix C7 PRO or the ThruNite TC20 V3?
When we checked on Nov 4, 2026, the Fenix C7 PRO was $89.95 at fenixlighting.com and the ThruNite TC20 V3 $79.95 at batteryjunction.com, so the ThruNite TC20 V3 cost $10.00 less. Prices change often, so check the current price before you buy.
Do the Fenix C7 PRO and ThruNite TC20 V3 use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Fenix C7 PRO with similar lights
Compare ThruNite TC20 V3 with similar lights
More
Sources
- Fenix C7 PRO: specs from Fenix product page (manufacturer). Price $89.95 from fenixlighting.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.
Found an error? Email liambuehlerbusiness@gmail.com and we will fix it.