Fenix HP25R V2.0 vs ThruNite TH20 Pro size comparison
The ThruNite TH20 Pro is 20 mm (0.79 in) longer than the Fenix HP25R V2.0, and 11 mm narrower at its widest point. Weights are published on different bases (listed vs with battery and headband), so compare them with care.
The ThruNite TH20 Pro is 20 mm (0.79 in) longer than the Fenix HP25R V2.0, and 11 mm narrower at its widest point. Weights are published on different bases (listed vs with battery and headband), so compare them with care.
Dimensions
| Fenix HP25R V2.0 Check price ↗ | ThruNite TH20 Pro Check price ↗ | |
| Length | 60 mm (2.36 in) | 80 mm (3.15 in)+20 mm |
| Head / width | 33 mm (1.30 in) | 22 mm (0.87 in)−11 mm |
| Body | — | 20 mm (0.79 in) |
| Thickness | 47 mm (1.85 in) | — |
| Weight | 238 g with battery and headband | 58 g listed |
| Battery | 21700 | 14500 |
| Max output | 1,600 lm | 1,010 lm |
| Throw | 228 m | 141 m |
| Type | Headlamp / right-angle | Headlamp / right-angle |
| Price | $119.95 at fenixlighting.com, as of Nov 4, 2026 | not verified yet |
| Source | fenixlighting.com sourced Lamp unit only; separate battery case 99 x 41 x 39.5 mm | batteryjunction.com sourced |
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
HP25R V2.0 vs TH20 Pro: how they differ
Size and weight
The Fenix HP25R V2.0 is the shorter light: 60 mm (2.36 in) against 80 mm (3.15 in), a difference of 20 mm (25%). At its widest point the ThruNite TH20 Pro is 11 mm slimmer (22 vs 33 mm). Weights are published on different bases (Fenix HP25R V2.0: 238 g with battery and headband; ThruNite TH20 Pro: 58 g listed), so they are not directly comparable.
Brightness and throw
The Fenix HP25R V2.0 is rated brighter: 1,600 lm maximum vs 1,010 lm for the ThruNite TH20 Pro, 58% more. For beam distance the Fenix HP25R V2.0 reaches further: 228 m vs 141 m rated throw (62% more).
Battery
The Fenix HP25R V2.0 runs on a removable 21700 battery; the ThruNite TH20 Pro runs on a removable 14500 battery. For scale, a 21700 cell is about 21 × 70 mm and a 14500 about 14 × 50 mm (nominal).
Type
Both are headlamps / right-angle lights in our catalog.
Which should you buy?
Choose the Fenix HP25R V2.0 if you want a shorter light (20 mm shorter), more output (1,600 lm vs 1,010 lm) and longer throw (228 m vs 141 m). Choose the ThruNite TH20 Pro if you want a slimmer profile (11 mm narrower). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix HP25R V2.0 Check price ↗ ThruNite TH20 Pro
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
HP25R V2.0 vs TH20 Pro FAQ
Which is smaller, the Fenix HP25R V2.0 or the ThruNite TH20 Pro?
The Fenix HP25R V2.0 is the shorter light: 60 mm (2.36 in) against 80 mm (3.15 in), a difference of 20 mm (25%). At its widest point the ThruNite TH20 Pro is 11 mm slimmer (22 vs 33 mm). Weights are published on different bases (Fenix HP25R V2.0: 238 g with battery and headband; ThruNite TH20 Pro: 58 g listed), so they are not directly comparable.
Which is brighter, the Fenix HP25R V2.0 or the ThruNite TH20 Pro?
The Fenix HP25R V2.0 is rated brighter: 1,600 lm maximum vs 1,010 lm for the ThruNite TH20 Pro, 58% more. For beam distance the Fenix HP25R V2.0 reaches further: 228 m vs 141 m rated throw (62% more).
Do the Fenix HP25R V2.0 and ThruNite TH20 Pro use the same battery?
The Fenix HP25R V2.0 runs on a removable 21700 battery; the ThruNite TH20 Pro runs on a removable 14500 battery. For scale, a 21700 cell is about 21 × 70 mm and a 14500 about 14 × 50 mm (nominal).
Compare Fenix HP25R V2.0 with similar lights
Compare ThruNite TH20 Pro with similar lights
More
Sources
- Fenix HP25R V2.0: specs from Fenix product page (manufacturer). Price $119.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- ThruNite TH20 Pro: specs from manufacturer published specs as listed by batteryjunction.com. No verified price yet.
Found an error? Email liambuehlerbusiness@gmail.com and we will fix it.