Fenix TK17 vs Streamlight ProTac HL-X size comparison
The Streamlight ProTac HL-X is 10.5 mm (0.41 in) shorter than the Fenix TK17, and 1 mm wider at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
The Streamlight ProTac HL-X is 10.5 mm (0.41 in) shorter than the Fenix TK17, and 1 mm wider at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
Dimensions
| Fenix TK17 Check price ↗ | Streamlight ProTac HL-X Check price ↗ | |
| Length | 148.5 mm (5.85 in) | 138 mm (5.43 in)−10.5 mm |
| Head / width | 36 mm (1.42 in) | 37 mm (1.46 in)+1 mm |
| Body | 25.4 mm (1.00 in) | 25 mm (0.98 in)−0.4 mm |
| Weight | 197.2 g with battery | 162 g listed |
| Battery | One included 6000mAh rechargeable li-ion | 18650 / 2x CR123A |
| Max output | 3,600 lm | 1,000 lm |
| Throw | 330 m | 330 m |
| Type | Tactical | Tactical |
| Price | $104.95 at fenixlighting.com, as of Nov 4, 2026 | from $112.15 at batteryjunction.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced | batteryjunction.com sourced |
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TK17 vs ProTac HL-X: how they differ
Size and weight
The Streamlight ProTac HL-X is the shorter light: 138 mm (5.43 in) against 148.5 mm (5.85 in), a difference of 10.5 mm (7%). At its widest point the Fenix TK17 is 1 mm slimmer (36 vs 37 mm). Weights are published on different bases (Fenix TK17: 197.2 g with battery; Streamlight ProTac HL-X: 162 g listed), so they are not directly comparable.
Brightness and throw
The Fenix TK17 is rated brighter: 3,600 lm maximum vs 1,000 lm for the Streamlight ProTac HL-X, 260% more. Rated throw is the same, 330 m.
Battery
The Fenix TK17 runs on its own battery (One included 6000mAh rechargeable li-ion); the Streamlight ProTac HL-X runs on removable 18650 / 2x CR123A batteries.
Price
When we checked on Nov 4, 2026, the Fenix TK17 was $104.95 at fenixlighting.com and the Streamlight ProTac HL-X from $112.15 at batteryjunction.com, so the Fenix TK17 cost $7.20 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 TK17 if you want more output (3,600 lm vs 1,000 lm). Choose the Streamlight ProTac HL-X if you want a shorter light (10.5 mm shorter). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix TK17 Check price ↗ Streamlight ProTac HL-X
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
TK17 vs ProTac HL-X FAQ
Which is smaller, the Fenix TK17 or the Streamlight ProTac HL-X?
The Streamlight ProTac HL-X is the shorter light: 138 mm (5.43 in) against 148.5 mm (5.85 in), a difference of 10.5 mm (7%). At its widest point the Fenix TK17 is 1 mm slimmer (36 vs 37 mm). Weights are published on different bases (Fenix TK17: 197.2 g with battery; Streamlight ProTac HL-X: 162 g listed), so they are not directly comparable.
Which is brighter, the Fenix TK17 or the Streamlight ProTac HL-X?
The Fenix TK17 is rated brighter: 3,600 lm maximum vs 1,000 lm for the Streamlight ProTac HL-X, 260% more. Rated throw is the same, 330 m.
Which is cheaper, the Fenix TK17 or the Streamlight ProTac HL-X?
When we checked on Nov 4, 2026, the Fenix TK17 was $104.95 at fenixlighting.com and the Streamlight ProTac HL-X from $112.15 at batteryjunction.com, so the Fenix TK17 cost $7.20 less. Prices change often, so check the current price before you buy.
Do the Fenix TK17 and Streamlight ProTac HL-X use the same battery?
The Fenix TK17 runs on its own battery (One included 6000mAh rechargeable li-ion); the Streamlight ProTac HL-X runs on removable 18650 / 2x CR123A batteries.
Compare Fenix TK17 with similar lights
Compare Streamlight ProTac HL-X with similar lights
More
Sources
- Fenix TK17: specs from Fenix product page (manufacturer). Drawing: shape measured from manufacturer photo (fenixlighting.com), scaled to the published length and diameter. Price $104.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Streamlight ProTac HL-X: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. Price from $112.15 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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