Fenix TK05R vs ThruNite BSS V6 size comparison
The ThruNite BSS V6 is 31 mm (1.22 in) longer than the Fenix TK05R, and 7 mm narrower at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
The ThruNite BSS V6 is 31 mm (1.22 in) longer than the Fenix TK05R, and 7 mm narrower at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
Dimensions
| Fenix TK05R Check price ↗ | ThruNite BSS V6 Check price ↗ | |
| Length | 115 mm (4.53 in) | 146 mm (5.75 in)+31 mm |
| Head / width | 32 mm (1.26 in) | 25 mm (0.98 in)−7 mm |
| Body | 23.5 mm (0.93 in) | 24 mm (0.94 in)+0.5 mm |
| Weight | 124 g with battery | 97 g listed |
| Battery | 18350 | 18650 |
| Max output | 1,000 lm | 2,000 lm |
| Throw | 450 m | 259 m |
| Type | Tactical | Tactical |
| Price | $79.95 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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TK05R vs BSS V6: how they differ
Size and weight
The Fenix TK05R is the shorter light: 115 mm (4.53 in) against 146 mm (5.75 in), a difference of 31 mm (21%). At its widest point the ThruNite BSS V6 is 7 mm slimmer (25 vs 32 mm). Weights are published on different bases (Fenix TK05R: 124 g with 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 TK05R, 100% more. For beam distance the Fenix TK05R reaches further: 450 m vs 259 m rated throw (74% more).
Battery
The Fenix TK05R runs on a removable 18350 battery; the ThruNite BSS V6 runs on a removable 18650 battery. For scale, a 18350 cell is about 18 × 35 mm and a 18650 about 18 × 65 mm (nominal).
Price
When we checked on Nov 4, 2026, the Fenix TK05R was $79.95 at fenixlighting.com and the ThruNite BSS V6 $49.99 at batteryjunction.com, so the ThruNite BSS V6 cost $29.96 less. Prices change often, so check the current price before you buy.
Type
Both are tactical lights in our catalog with a tube body.
Which should you buy?
Choose the Fenix TK05R if you want a shorter light (31 mm shorter) and longer throw (450 m vs 259 m). Choose the ThruNite BSS V6 if you want a slimmer profile (7 mm narrower) and 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 TK05R Check price ↗ ThruNite BSS V6
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
TK05R vs BSS V6 FAQ
Which is smaller, the Fenix TK05R or the ThruNite BSS V6?
The Fenix TK05R is the shorter light: 115 mm (4.53 in) against 146 mm (5.75 in), a difference of 31 mm (21%). At its widest point the ThruNite BSS V6 is 7 mm slimmer (25 vs 32 mm). Weights are published on different bases (Fenix TK05R: 124 g with battery; ThruNite BSS V6: 97 g listed), so they are not directly comparable.
Which is brighter, the Fenix TK05R or the ThruNite BSS V6?
The ThruNite BSS V6 is rated brighter: 2,000 lm maximum vs 1,000 lm for the Fenix TK05R, 100% more. For beam distance the Fenix TK05R reaches further: 450 m vs 259 m rated throw (74% more).
Which is cheaper, the Fenix TK05R or the ThruNite BSS V6?
When we checked on Nov 4, 2026, the Fenix TK05R was $79.95 at fenixlighting.com and the ThruNite BSS V6 $49.99 at batteryjunction.com, so the ThruNite BSS V6 cost $29.96 less. Prices change often, so check the current price before you buy.
Do the Fenix TK05R and ThruNite BSS V6 use the same battery?
The Fenix TK05R runs on a removable 18350 battery; the ThruNite BSS V6 runs on a removable 18650 battery. For scale, a 18350 cell is about 18 × 35 mm and a 18650 about 18 × 65 mm (nominal).
Compare Fenix TK05R with similar lights
Compare ThruNite BSS V6 with similar lights
More
Sources
- Fenix TK05R: specs from Fenix product page (manufacturer). Price $79.95 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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