Fenix HL16 AAA vs Fenix HL18R-T V2.0 size comparison
The Fenix HL18R-T V2.0 is 17 mm (0.67 in) shorter than the Fenix HL16 AAA, and 1 mm narrower at its widest point. It is 6 g heavier (with battery).
The Fenix HL18R-T V2.0 is 17 mm (0.67 in) shorter than the Fenix HL16 AAA, and 1 mm narrower at its widest point. It is 6 g heavier (with battery).
Dimensions
| Fenix HL16 AAA Check price ↗ | Fenix HL18R-T V2.0 Check price ↗ | |
| Length | 64 mm (2.52 in) | 47 mm (1.85 in)−17 mm |
| Height | 48 mm (1.89 in) | 47 mm (1.85 in)−1 mm |
| Thickness | 27 mm (1.06 in) | 31 mm (1.22 in)+4 mm |
| Weight | 97.2 g with battery and headband | 103 g with battery and headband+6 g |
| Battery | 3x AAA | Built-in |
| Max output | 450 lm | 800 lm |
| Throw | 104 m | 125 m |
| Type | Headlamp / right-angle | Headlamp / right-angle |
| Price | $29.95 at fenixlighting.com, as of Nov 4, 2026 | $54.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced Headlamp unit; front view drawn width x height | fenixlighting.com sourced Headlamp unit; front view drawn width x height |
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HL16 AAA vs HL18R-T V2.0: how they differ
Size and weight
The Fenix HL18R-T V2.0 is the shorter light: 47 mm (1.85 in) against 64 mm (2.52 in), a difference of 17 mm (27%). At its widest point the Fenix HL18R-T V2.0 is 1 mm slimmer (47 vs 48 mm). The Fenix HL16 AAA is 6 g lighter (97.2 g vs 103 g, with battery and headband).
Brightness and throw
The Fenix HL18R-T V2.0 is rated brighter: 800 lm maximum vs 450 lm for the Fenix HL16 AAA, 78% more. For beam distance the Fenix HL18R-T V2.0 reaches further: 125 m vs 104 m rated throw (20% more).
Battery
The Fenix HL16 AAA runs on removable 3x AAA batteries; the Fenix HL18R-T V2.0 runs on a built-in rechargeable battery. Only the Fenix HL16 AAA lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Fenix HL16 AAA was $29.95 at fenixlighting.com and the Fenix HL18R-T V2.0 $54.95 at fenixlighting.com, so the Fenix HL16 AAA cost $25.00 less. Prices change often, so check the current price before you buy.
Type
Both are headlamps / right-angle lights in our catalog with a headlamp body.
Which should you buy?
Choose the Fenix HL16 AAA if you want less weight (6 g lighter) and a removable cell you can swap. Choose the Fenix HL18R-T V2.0 if you want a shorter light (17 mm shorter), more output (800 lm vs 450 lm), longer throw (125 m vs 104 m) and a built-in battery with no separate cell to buy. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix HL16 AAA Check price ↗ Fenix HL18R-T V2.0
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
HL16 AAA vs HL18R-T V2.0 FAQ
Which is smaller, the Fenix HL16 AAA or the Fenix HL18R-T V2.0?
The Fenix HL18R-T V2.0 is the shorter light: 47 mm (1.85 in) against 64 mm (2.52 in), a difference of 17 mm (27%). At its widest point the Fenix HL18R-T V2.0 is 1 mm slimmer (47 vs 48 mm). The Fenix HL16 AAA is 6 g lighter (97.2 g vs 103 g, with battery and headband).
Which is brighter, the Fenix HL16 AAA or the Fenix HL18R-T V2.0?
The Fenix HL18R-T V2.0 is rated brighter: 800 lm maximum vs 450 lm for the Fenix HL16 AAA, 78% more. For beam distance the Fenix HL18R-T V2.0 reaches further: 125 m vs 104 m rated throw (20% more).
Which is cheaper, the Fenix HL16 AAA or the Fenix HL18R-T V2.0?
When we checked on Nov 4, 2026, the Fenix HL16 AAA was $29.95 at fenixlighting.com and the Fenix HL18R-T V2.0 $54.95 at fenixlighting.com, so the Fenix HL16 AAA cost $25.00 less. Prices change often, so check the current price before you buy.
Do the Fenix HL16 AAA and Fenix HL18R-T V2.0 use the same battery?
The Fenix HL16 AAA runs on removable 3x AAA batteries; the Fenix HL18R-T V2.0 runs on a built-in rechargeable battery. Only the Fenix HL16 AAA lets you swap in a charged spare.
Compare Fenix HL16 AAA with similar lights
Compare Fenix HL18R-T V2.0 with similar lights
More
Sources
- Fenix HL16 AAA: specs from Fenix product page (manufacturer). Price $29.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Fenix HL18R-T V2.0: specs from Fenix product page (manufacturer). Price $54.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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