Streamlight ProTac HL-X vs ThruNite BSS V6 size comparison

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The ThruNite BSS V6 is 8 mm (0.31 in) longer than the Streamlight ProTac HL-X, and 12 mm narrower at its widest point. Weights are published on different bases (listed vs listed), so compare them with care.

Streamlight ProTac HL-X · 138 mmThruNite BSS V6 · 146 mm

The ThruNite BSS V6 is 8 mm (0.31 in) longer than the Streamlight ProTac HL-X, and 12 mm narrower at its widest point. Weights are published on different bases (listed vs listed), so compare them with care.

Dimensions

Streamlight ProTac HL-X
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ThruNite BSS V6
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Length138 mm (5.43 in)146 mm (5.75 in)+8 mm
Head / width37 mm (1.46 in)25 mm (0.98 in)−12 mm
Body25 mm (0.98 in)24 mm (0.94 in)−1 mm
Weight162 g listed97 g listed
Battery18650 / 2x CR123A18650
Max output1,000 lm2,000 lm
Throw330 m259 m
TypeTacticalTactical
Pricefrom $112.15 at batteryjunction.com, as of Nov 4, 2026$49.99 at batteryjunction.com, as of Nov 4, 2026
Sourcebatteryjunction.com sourcedbatteryjunction.com sourced

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ProTac HL-X vs BSS V6: how they differ

Size and weight

The Streamlight ProTac HL-X is the shorter light: 138 mm (5.43 in) against 146 mm (5.75 in), a difference of 8 mm (5%). At its widest point the ThruNite BSS V6 is 12 mm slimmer (25 vs 37 mm). Weights are published on different bases (Streamlight ProTac HL-X: 162 g listed; 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 Streamlight ProTac HL-X, 100% more. For beam distance the Streamlight ProTac HL-X reaches further: 330 m vs 259 m rated throw (27% more).

Battery

The Streamlight ProTac HL-X 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 Streamlight ProTac HL-X was from $112.15 at batteryjunction.com and the ThruNite BSS V6 $49.99 at batteryjunction.com, so the ThruNite BSS V6 cost $62.16 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 Streamlight ProTac HL-X if you want a shorter light (8 mm shorter) and longer throw (330 m vs 259 m). Choose the ThruNite BSS V6 if you want a slimmer profile (12 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 ↗ Streamlight ProTac HL-X Check price ↗ ThruNite BSS V6

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ProTac HL-X vs BSS V6 FAQ

Which is smaller, the Streamlight ProTac HL-X or the ThruNite BSS V6?

The Streamlight ProTac HL-X is the shorter light: 138 mm (5.43 in) against 146 mm (5.75 in), a difference of 8 mm (5%). At its widest point the ThruNite BSS V6 is 12 mm slimmer (25 vs 37 mm). Weights are published on different bases (Streamlight ProTac HL-X: 162 g listed; ThruNite BSS V6: 97 g listed), so they are not directly comparable.

Which is brighter, the Streamlight ProTac HL-X or the ThruNite BSS V6?

The ThruNite BSS V6 is rated brighter: 2,000 lm maximum vs 1,000 lm for the Streamlight ProTac HL-X, 100% more. For beam distance the Streamlight ProTac HL-X reaches further: 330 m vs 259 m rated throw (27% more).

Which is cheaper, the Streamlight ProTac HL-X or the ThruNite BSS V6?

When we checked on Nov 4, 2026, the Streamlight ProTac HL-X was from $112.15 at batteryjunction.com and the ThruNite BSS V6 $49.99 at batteryjunction.com, so the ThruNite BSS V6 cost $62.16 less. Prices change often, so check the current price before you buy.

Do the Streamlight ProTac HL-X and ThruNite BSS V6 use the same battery?

The Streamlight ProTac HL-X runs on removable 18650 / 2x CR123A batteries; the ThruNite BSS V6 runs on a removable 18650 battery.

Compare Streamlight ProTac HL-X with similar lights

ProTac HL-X vs LD35RProTac HL-X vs XT11GT Pro V3ProTac HL-X vs TK16 V2.0ProTac HL-X vs TK17ProTac HL-X vs XT21CProTac HL-X vs TK11R

Compare ThruNite BSS V6 with similar lights

BSS V6 vs P10 V2BSS V6 vs UC35 V2.0 USBBSS V6 vs PD36 TACBSS V6 vs P23iBSS V6 vs P15BSS V6 vs TN12 V6

More

Streamlight ProTac HL-X size & specsThruNite BSS V6 size & specsBest tactical flashlightsBest 18650 flashlightsBest flashlights under $50All Streamlight lightsAll ThruNite lightsBest EDC flashlights

Sources

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