Olight Seeker 3 size & dimensions
Olight Seeker 3 shown at true scale next to a 21700 cell. Add another light to compare.
Specs
| Olight Seeker 3 Check price ↗ | |
| Length | 128 mm (5.04 in) |
| Head / width | 35 mm (1.38 in) |
| Body | 27.5 mm (1.08 in) |
| Weight | 184 g with battery |
| Battery | 21700 |
| Max output | 3,500 lm |
| Throw | 220 m |
| Type | EDC |
| Price | $119.95 at olight.com, as of Nov 4, 2026 |
| Source | olight.com sourced |
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Size in everyday terms
The Olight Seeker 3 is 128 mm (5.04 in) long and 35 mm (1.38 in) across at its widest point. That is about 1.5 times the length of a credit card (85.6 mm), or about 2.5 AA batteries end to end (50.5 mm each). Its widest point is 10.7 mm wider than a US quarter (24.26 mm). Next to a phone the size of an iPhone 15 (147.6 mm tall) it is 87% as long.
How it ranks
Among the 136 EDC lights in our catalog, the Olight Seeker 3 is the 88th shortest, 19th brightest of 118 with a published output and 38th for throw of 81 with a published beam distance.
Battery, output and weight
The Olight Seeker 3 runs on a removable 21700 battery. The manufacturer rates its maximum output at 3,500 lm and its throw at 220 m. Listed weight is 184 g (with battery). When we checked on Nov 4, 2026, it was $119.95 at olight.com.
Featured in: Best 21700 flashlights (#25).
Olight Seeker 3 vs…
Seeker 3 FAQ
How big is the Olight Seeker 3?
The Olight Seeker 3 is 128 mm (5.04 in) long and 35 mm (1.38 in) across at its widest point. That is about 1.5 times the length of a credit card (85.6 mm), or about 2.5 AA batteries end to end (50.5 mm each). Its widest point is 10.7 mm wider than a US quarter (24.26 mm). Next to a phone the size of an iPhone 15 (147.6 mm tall) it is 87% as long.
What battery does the Olight Seeker 3 use?
The Olight Seeker 3 runs on a removable 21700 battery.
How bright is the Olight Seeker 3?
The manufacturer rates the Olight Seeker 3 at 3,500 lm maximum output, with 220 m of throw.
More Olight lights
See also: Best EDC flashlights
Sources
- Olight Seeker 3: specs from Olight product page (manufacturer). Price $119.95 from olight.com, checked Nov 4, 2026; prices change often.
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