Fenix HP35R vs Olight Perun 3 size comparison
The Olight Perun 3 is 22.9 mm (0.90 in) longer than the Fenix HP35R, and 29.4 mm narrower at its widest point.
The Olight Perun 3 is 22.9 mm (0.90 in) longer than the Fenix HP35R, and 29.4 mm narrower at its widest point.
Dimensions
| Fenix HP35R Check price ↗ | Olight Perun 3 Check price ↗ | |
| Length | 94.1 mm (3.70 in) | 117 mm (4.61 in)+22.9 mm |
| Head / width | 57.4 mm (2.26 in) | 28 mm (1.10 in)−29.4 mm |
| Body | — | 28 mm (1.10 in) |
| Thickness | 48.7 mm (1.92 in) | — |
| Weight | — | 150 g listed |
| Battery | Built-in | 21700 |
| Max output | 4,000 lm | 3,000 lm |
| Throw | 450 m | 160 m |
| Type | Headlamp / right-angle | Headlamp / right-angle |
| Price | $229.95 at fenixlighting.com, as of Nov 4, 2026 | $89.99 at olight.com, as of Nov 4, 2026 |
| Source | fenixlighting.com sourced Standard lamp unit (94.1 x 48.7 x 57.4 mm); SAR version 99.4 x 53.4 x 54.7 mm; separate 10000 mAh battery case | batteryjunction.com sourced |
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HP35R vs Perun 3: how they differ
Size and weight
The Fenix HP35R is the shorter light: 94.1 mm (3.70 in) against 117 mm (4.61 in), a difference of 22.9 mm (20%). At its widest point the Olight Perun 3 is 29.4 mm slimmer (28 vs 57.4 mm).
Brightness and throw
The Fenix HP35R is rated brighter: 4,000 lm maximum vs 3,000 lm for the Olight Perun 3, 33% more. For beam distance the Fenix HP35R reaches further: 450 m vs 160 m rated throw (181% more).
Battery
The Fenix HP35R runs on a built-in rechargeable battery; the Olight Perun 3 runs on a removable 21700 battery. Only the Olight Perun 3 lets you swap in a charged spare.
Price
When we checked on Nov 4, 2026, the Fenix HP35R was $229.95 at fenixlighting.com and the Olight Perun 3 $89.99 at olight.com, so the Olight Perun 3 cost $139.96 less. Prices change often, so check the current price before you buy.
Type
Both are headlamps / right-angle lights in our catalog.
Which should you buy?
Choose the Fenix HP35R if you want a shorter light (22.9 mm shorter), more output (4,000 lm vs 3,000 lm), longer throw (450 m vs 160 m) and a built-in battery with no separate cell to buy. Choose the Olight Perun 3 if you want a slimmer profile (29.4 mm narrower) and a removable cell you can swap. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix HP35R Check price ↗ Olight Perun 3
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HP35R vs Perun 3 FAQ
Which is smaller, the Fenix HP35R or the Olight Perun 3?
The Fenix HP35R is the shorter light: 94.1 mm (3.70 in) against 117 mm (4.61 in), a difference of 22.9 mm (20%). At its widest point the Olight Perun 3 is 29.4 mm slimmer (28 vs 57.4 mm).
Which is brighter, the Fenix HP35R or the Olight Perun 3?
The Fenix HP35R is rated brighter: 4,000 lm maximum vs 3,000 lm for the Olight Perun 3, 33% more. For beam distance the Fenix HP35R reaches further: 450 m vs 160 m rated throw (181% more).
Which is cheaper, the Fenix HP35R or the Olight Perun 3?
When we checked on Nov 4, 2026, the Fenix HP35R was $229.95 at fenixlighting.com and the Olight Perun 3 $89.99 at olight.com, so the Olight Perun 3 cost $139.96 less. Prices change often, so check the current price before you buy.
Do the Fenix HP35R and Olight Perun 3 use the same battery?
The Fenix HP35R runs on a built-in rechargeable battery; the Olight Perun 3 runs on a removable 21700 battery. Only the Olight Perun 3 lets you swap in a charged spare.
Compare Fenix HP35R with similar lights
Compare Olight Perun 3 with similar lights
More
Sources
- Fenix HP35R: specs from Fenix product page (manufacturer). Drawing: outline from published specs. Price $229.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- Olight Perun 3: specs from Olight product page (manufacturer); manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. Price $89.99 from olight.com, checked Nov 4, 2026; prices change often.
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