Fenix TK21R vs Streamlight ProTac HL-X size comparison
The Streamlight ProTac HL-X is 21.5 mm (0.85 in) shorter than the Fenix TK21R, 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 21.5 mm (0.85 in) shorter than the Fenix TK21R, 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 TK21R Check price ↗ | Streamlight ProTac HL-X Check price ↗ | |
| Length | 159.5 mm (6.28 in) | 138 mm (5.43 in)−21.5 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 | 221.4 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 | 480 m | 330 m |
| Type | Tactical | Tactical |
| Price | $134.95 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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TK21R 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 159.5 mm (6.28 in), a difference of 21.5 mm (13%). At its widest point the Fenix TK21R is 1 mm slimmer (36 vs 37 mm). Weights are published on different bases (Fenix TK21R: 221.4 g with battery; Streamlight ProTac HL-X: 162 g listed), so they are not directly comparable.
Brightness and throw
The Fenix TK21R is rated brighter: 3,600 lm maximum vs 1,000 lm for the Streamlight ProTac HL-X, 260% more. For beam distance the Fenix TK21R reaches further: 480 m vs 330 m rated throw (45% more).
Battery
The Fenix TK21R 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 TK21R was $134.95 at fenixlighting.com and the Streamlight ProTac HL-X from $112.15 at batteryjunction.com, so the Streamlight ProTac HL-X cost $22.80 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 TK21R if you want more output (3,600 lm vs 1,000 lm) and longer throw (480 m vs 330 m). Choose the Streamlight ProTac HL-X if you want a shorter light (21.5 mm shorter). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix TK21R 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
TK21R vs ProTac HL-X FAQ
Which is smaller, the Fenix TK21R or the Streamlight ProTac HL-X?
The Streamlight ProTac HL-X is the shorter light: 138 mm (5.43 in) against 159.5 mm (6.28 in), a difference of 21.5 mm (13%). At its widest point the Fenix TK21R is 1 mm slimmer (36 vs 37 mm). Weights are published on different bases (Fenix TK21R: 221.4 g with battery; Streamlight ProTac HL-X: 162 g listed), so they are not directly comparable.
Which is brighter, the Fenix TK21R or the Streamlight ProTac HL-X?
The Fenix TK21R is rated brighter: 3,600 lm maximum vs 1,000 lm for the Streamlight ProTac HL-X, 260% more. For beam distance the Fenix TK21R reaches further: 480 m vs 330 m rated throw (45% more).
Which is cheaper, the Fenix TK21R or the Streamlight ProTac HL-X?
When we checked on Nov 4, 2026, the Fenix TK21R was $134.95 at fenixlighting.com and the Streamlight ProTac HL-X from $112.15 at batteryjunction.com, so the Streamlight ProTac HL-X cost $22.80 less. Prices change often, so check the current price before you buy.
Do the Fenix TK21R and Streamlight ProTac HL-X use the same battery?
The Fenix TK21R 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 TK21R with similar lights
Compare Streamlight ProTac HL-X with similar lights
More
Sources
- Fenix TK21R: specs from Fenix product page (manufacturer). Price $134.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Streamlight ProTac HL-X: specs from manufacturer published specs as listed by batteryjunction.com. Price from $112.15 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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