Fenix UC35 V2.0 USB vs ThruNite BSS V6 size comparison
The ThruNite BSS V6 is 6 mm (0.24 in) longer than the Fenix UC35 V2.0 USB, with about the same max diameter/width. Weights are published on different bases (listed vs without battery), so compare them with care.
The ThruNite BSS V6 is 6 mm (0.24 in) longer than the Fenix UC35 V2.0 USB, with about the same max diameter/width. Weights are published on different bases (listed vs without battery), so compare them with care.
Dimensions
| Fenix UC35 V2.0 USB Check price ↗ | ThruNite BSS V6 Check price ↗ | |
| Length | 140 mm (5.51 in) | 146 mm (5.75 in)+6 mm |
| Head / width | 25.4 mm (1.00 in) | 25 mm (0.98 in)−0.4 mm |
| Body | 23.5 mm (0.93 in) | 24 mm (0.94 in)+0.5 mm |
| Weight | 89 g without battery | 97 g listed |
| Battery | 18650 / 2x CR123A | 18650 |
| Max output | 1,000 lm | 2,000 lm |
| Throw | 266 m | 259 m |
| Type | EDC | Tactical |
| Price | $89.95 at fenixlighting.com, as of Nov 4, 2026 | $49.99 at batteryjunction.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced | batteryjunction.com sourced |
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UC35 V2.0 USB vs BSS V6: how they differ
Size and weight
The Fenix UC35 V2.0 USB is the shorter light: 140 mm (5.51 in) against 146 mm (5.75 in), a difference of 6 mm (4%). At their widest points they are about the same (25.4 vs 25 mm). Weights are published on different bases (Fenix UC35 V2.0 USB: 89 g without battery; ThruNite BSS V6: 97 g listed), so they are not directly comparable.
Brightness and throw
The ThruNite BSS V6 is rated brighter: 2,000 lm maximum vs 1,000 lm for the Fenix UC35 V2.0 USB, 100% more. For beam distance the Fenix UC35 V2.0 USB reaches further: 266 m vs 259 m rated throw (3% more).
Battery
The Fenix UC35 V2.0 USB runs on removable 18650 / 2x CR123A batteries; the ThruNite BSS V6 runs on a removable 18650 battery.
Price
When we checked on Nov 4, 2026, the Fenix UC35 V2.0 USB was $89.95 at fenixlighting.com and the ThruNite BSS V6 $49.99 at batteryjunction.com, so the ThruNite BSS V6 cost $39.96 less. Prices change often, so check the current price before you buy.
Type
The Fenix UC35 V2.0 USB is listed as edc and the ThruNite BSS V6 as tactical, so they suit different jobs.
Which should you buy?
Choose the Fenix UC35 V2.0 USB if you want a shorter light (6 mm shorter). Choose the ThruNite BSS V6 if you want more output (2,000 lm vs 1,000 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix UC35 V2.0 USB Check price ↗ ThruNite BSS V6
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
UC35 V2.0 USB vs BSS V6 FAQ
Which is smaller, the Fenix UC35 V2.0 USB or the ThruNite BSS V6?
The Fenix UC35 V2.0 USB is the shorter light: 140 mm (5.51 in) against 146 mm (5.75 in), a difference of 6 mm (4%). At their widest points they are about the same (25.4 vs 25 mm). Weights are published on different bases (Fenix UC35 V2.0 USB: 89 g without battery; ThruNite BSS V6: 97 g listed), so they are not directly comparable.
Which is brighter, the Fenix UC35 V2.0 USB or the ThruNite BSS V6?
The ThruNite BSS V6 is rated brighter: 2,000 lm maximum vs 1,000 lm for the Fenix UC35 V2.0 USB, 100% more. For beam distance the Fenix UC35 V2.0 USB reaches further: 266 m vs 259 m rated throw (3% more).
Which is cheaper, the Fenix UC35 V2.0 USB or the ThruNite BSS V6?
When we checked on Nov 4, 2026, the Fenix UC35 V2.0 USB was $89.95 at fenixlighting.com and the ThruNite BSS V6 $49.99 at batteryjunction.com, so the ThruNite BSS V6 cost $39.96 less. Prices change often, so check the current price before you buy.
Do the Fenix UC35 V2.0 USB and ThruNite BSS V6 use the same battery?
The Fenix UC35 V2.0 USB runs on removable 18650 / 2x CR123A batteries; the ThruNite BSS V6 runs on a removable 18650 battery.
Compare Fenix UC35 V2.0 USB with similar lights
Compare ThruNite BSS V6 with similar lights
More
Sources
- Fenix UC35 V2.0 USB: specs from Fenix product page (manufacturer). Price $89.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- ThruNite BSS V6: specs from manufacturer published specs as listed by batteryjunction.com. Price $49.99 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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