Olight Perun 3 vs Wurkkos HD20 size comparison
The Wurkkos HD20 is 5 mm (0.20 in) longer than the Olight Perun 3, and 2 mm wider at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
The Wurkkos HD20 is 5 mm (0.20 in) longer than the Olight Perun 3, and 2 mm wider at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
Dimensions
| Olight Perun 3 Check price ↗ | Wurkkos HD20 Check price ↗ | |
| Length | 117 mm (4.61 in) | 122 mm (4.80 in)+5 mm |
| Head / width | 28 mm (1.10 in) | 30 mm (1.18 in)+2 mm |
| Body | 28 mm (1.10 in) | — |
| Weight | 150 g listed | 130 g without battery |
| Battery | 21700 | 21700 |
| Max output | 3,000 lm | 2,000 lm |
| Throw | 160 m | — |
| Type | Headlamp / right-angle | Headlamp / right-angle |
| Price | $89.99 at olight.com, as of Nov 4, 2026 | $41.99 at flashlightgo.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | flashlightgo.com sourced Right-angle headlamp/flashlight |
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
Perun 3 vs HD20: how they differ
Size and weight
The Olight Perun 3 is the shorter light: 117 mm (4.61 in) against 122 mm (4.80 in), a difference of 5 mm (4%). At its widest point the Olight Perun 3 is 2 mm slimmer (28 vs 30 mm). Weights are published on different bases (Olight Perun 3: 150 g listed; Wurkkos HD20: 130 g without battery), so they are not directly comparable.
Brightness and throw
The Olight Perun 3 is rated brighter: 3,000 lm maximum vs 2,000 lm for the Wurkkos HD20, 50% more.
Battery
Both run on a removable 21700 battery, so spare cells work in either light.
Price
When we checked on Nov 4, 2026, the Olight Perun 3 was $89.99 at olight.com and the Wurkkos HD20 $41.99 at flashlightgo.com, so the Wurkkos HD20 cost $48.00 less. Prices change often, so check the current price before you buy.
Type
Both are headlamps / right-angle lights in our catalog with a right-angle body.
Which should you buy?
Choose the Olight Perun 3 if you want a shorter light (5 mm shorter), a slimmer profile (2 mm narrower) and more output (3,000 lm vs 2,000 lm). On the specs we track, the Olight Perun 3 is ahead or level everywhere; the Wurkkos HD20 makes sense mainly if its price, interface or a feature we don't track suits you better. We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Olight Perun 3 Check price ↗ Wurkkos HD20
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
Perun 3 vs HD20 FAQ
Which is smaller, the Olight Perun 3 or the Wurkkos HD20?
The Olight Perun 3 is the shorter light: 117 mm (4.61 in) against 122 mm (4.80 in), a difference of 5 mm (4%). At its widest point the Olight Perun 3 is 2 mm slimmer (28 vs 30 mm). Weights are published on different bases (Olight Perun 3: 150 g listed; Wurkkos HD20: 130 g without battery), so they are not directly comparable.
Which is brighter, the Olight Perun 3 or the Wurkkos HD20?
The Olight Perun 3 is rated brighter: 3,000 lm maximum vs 2,000 lm for the Wurkkos HD20, 50% more.
Which is cheaper, the Olight Perun 3 or the Wurkkos HD20?
When we checked on Nov 4, 2026, the Olight Perun 3 was $89.99 at olight.com and the Wurkkos HD20 $41.99 at flashlightgo.com, so the Wurkkos HD20 cost $48.00 less. Prices change often, so check the current price before you buy.
Do the Olight Perun 3 and Wurkkos HD20 use the same battery?
Both run on a removable 21700 battery, so spare cells work in either light.
Compare Olight Perun 3 with similar lights
Compare Wurkkos HD20 with similar lights
More
Sources
- Olight Perun 3: specs from Olight product page (manufacturer); manufacturer published specs as listed by batteryjunction.com. Price $89.99 from olight.com, checked Nov 4, 2026; prices change often.
- Wurkkos HD20: specs from manufacturer published specs as listed by flashlightgo.com. Price $41.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
Found an error? Email liambuehlerbusiness@gmail.com and we will fix it.