Olight i3E EOS size & dimensions
Olight i3E EOS shown at true scale next to an AA battery. Add another light to compare.
Specs
| Olight i3E EOS Check price ↗ | |
| Length | 60.5 mm (2.38 in) |
| Head / width | 14 mm (0.55 in) |
| Body | 12.5 mm (0.49 in) |
| Weight | 19.4 g listed |
| Battery | AAA |
| Max output | 90 lm |
| Throw | — |
| Type | Keychain |
| Price | $15.99 at olight.com, as of Nov 4, 2026 |
| Source | olight.com sourced |
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Size in everyday terms
The Olight i3E EOS is 60.5 mm (2.38 in) long and 14 mm (0.55 in) across at its widest point. That is shorter than the long side of a credit card (85.6 mm), or about 1.2 AA batteries end to end (50.5 mm each). Its widest point is 10.3 mm narrower than a US quarter (24.26 mm).
How it ranks
Among the 14 keychain lights in our catalog, the Olight i3E EOS is the 11th shortest, 13th brightest of 14 with a published output.
Battery, output and weight
The Olight i3E EOS runs on a removable AAA battery. The manufacturer rates its maximum output at 90 lm. Listed weight is 19.4 g. When we checked on Nov 4, 2026, it was $15.99 at olight.com.
Featured in: Best keychain flashlights (#13), Best AAA flashlights (#7).
Olight i3E EOS vs…
i3E EOS FAQ
How big is the Olight i3E EOS?
The Olight i3E EOS is 60.5 mm (2.38 in) long and 14 mm (0.55 in) across at its widest point. That is shorter than the long side of a credit card (85.6 mm), or about 1.2 AA batteries end to end (50.5 mm each). Its widest point is 10.3 mm narrower than a US quarter (24.26 mm).
What battery does the Olight i3E EOS use?
The Olight i3E EOS runs on a removable AAA battery.
How bright is the Olight i3E EOS?
The manufacturer rates the Olight i3E EOS at 90 lm maximum output.
More Olight lights
See also: Best keychain flashlights
Sources
- Olight i3E EOS: specs from Olight product page (manufacturer). Price $15.99 from olight.com, checked Nov 4, 2026; prices change often.
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