Emisar D3AA vs Olight i3T EOS size comparison
The Olight i3T EOS is 10 mm (0.39 in) longer than the Emisar D3AA, and 9 mm narrower at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
The Olight i3T EOS is 10 mm (0.39 in) longer than the Emisar D3AA, and 9 mm narrower at its widest point. Weights are published on different bases (with battery vs without battery), so compare them with care.
Dimensions
| Emisar D3AA Check price ↗ | Olight i3T EOS Check price ↗ | |
| Length | 79 mm (3.11 in) | 89 mm (3.50 in)+10 mm |
| Head / width | 24 mm (0.94 in) | 15 mm (0.59 in)−9 mm |
| Body | 19 mm (0.75 in) | 15 mm (0.59 in)−4 mm |
| Weight | 36 g without battery | 41 g with battery |
| Battery | 14500 / AA | AAA |
| Max output | — | 180 lm |
| Throw | — | — |
| Type | EDC | EDC |
| Price | $35.81 at intl-outdoor.com, as of Nov 4, 2026 | $17.99 at olight.com, as of Nov 4, 2026 |
| Source | intl-outdoor.com sourced Output depends on LED option | batteryjunction.com sourced |
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
D3AA vs i3T EOS: how they differ
Size and weight
The Emisar D3AA is the shorter light: 79 mm (3.11 in) against 89 mm (3.50 in), a difference of 10 mm (11%). At its widest point the Olight i3T EOS is 9 mm slimmer (15 vs 24 mm). Weights are published on different bases (Emisar D3AA: 36 g without battery; Olight i3T EOS: 41 g with battery), so they are not directly comparable.
Brightness and throw
The Olight i3T EOS is rated at 180 lm; we have no published maximum for the Emisar D3AA. Output for the Emisar D3AA depends on the LED option chosen.
Battery
The Emisar D3AA runs on removable 14500 / AA batteries; the Olight i3T EOS runs on a removable AAA battery. For scale, a 14500 cell is about 14 × 50 mm and a AAA about 10.5 × 44.5 mm (nominal).
Price
When we checked on Nov 4, 2026, the Emisar D3AA was $35.81 at intl-outdoor.com and the Olight i3T EOS $17.99 at olight.com, so the Olight i3T EOS cost $17.82 less. Prices change often, so check the current price before you buy.
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Emisar D3AA if you want a shorter light (10 mm shorter). Choose the Olight i3T EOS if you want a slimmer profile (9 mm narrower). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Emisar D3AA Check price ↗ Olight i3T EOS
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
D3AA vs i3T EOS FAQ
Which is smaller, the Emisar D3AA or the Olight i3T EOS?
The Emisar D3AA is the shorter light: 79 mm (3.11 in) against 89 mm (3.50 in), a difference of 10 mm (11%). At its widest point the Olight i3T EOS is 9 mm slimmer (15 vs 24 mm). Weights are published on different bases (Emisar D3AA: 36 g without battery; Olight i3T EOS: 41 g with battery), so they are not directly comparable.
Which is cheaper, the Emisar D3AA or the Olight i3T EOS?
When we checked on Nov 4, 2026, the Emisar D3AA was $35.81 at intl-outdoor.com and the Olight i3T EOS $17.99 at olight.com, so the Olight i3T EOS cost $17.82 less. Prices change often, so check the current price before you buy.
Do the Emisar D3AA and Olight i3T EOS use the same battery?
The Emisar D3AA runs on removable 14500 / AA batteries; the Olight i3T EOS runs on a removable AAA battery. For scale, a 14500 cell is about 14 × 50 mm and a AAA about 10.5 × 44.5 mm (nominal).
Compare Emisar D3AA with similar lights
Compare Olight i3T EOS with similar lights
More
Sources
- Emisar D3AA: specs from Emisar product page (manufacturer). Price $35.81 from intl-outdoor.com, checked Nov 4, 2026; prices change often.
- Olight i3T EOS: specs from Olight product page (manufacturer); manufacturer published specs as listed by batteryjunction.com. Price $17.99 from olight.com, checked Nov 4, 2026; prices change often.
Found an error? Email liambuehlerbusiness@gmail.com and we will fix it.