Fenix E18R V2.0 vs ThruNite T1S V2 size comparison
The ThruNite T1S V2 is 2 mm (0.08 in) longer than the Fenix E18R V2.0, and 4 mm wider at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
The ThruNite T1S V2 is 2 mm (0.08 in) longer than the Fenix E18R V2.0, and 4 mm wider at its widest point. Weights are published on different bases (listed vs with battery), so compare them with care.
Dimensions
| Fenix E18R V2.0 Check price ↗ | ThruNite T1S V2 Check price ↗ | |
| Length | 67 mm (2.64 in) | 69 mm (2.72 in)+2 mm |
| Head / width | 22 mm (0.87 in) | 26 mm (1.02 in)+4 mm |
| Body | 22 mm (0.87 in) | 22 mm (0.87 in)same |
| Weight | 56 g with battery | 41 g listed |
| Battery | 16340 | 18350 |
| Max output | 1,200 lm | 1,212 lm |
| Throw | 146 m | 184 m |
| Type | EDC | EDC |
| Price | $59.95 at fenixlighting.com, as of Nov 4, 2026 | not verified yet |
| Source | fenixlighting.com sourced | batteryjunction.com sourced |
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E18R V2.0 vs T1S V2: how they differ
Size and weight
The Fenix E18R V2.0 is the shorter light: 67 mm (2.64 in) against 69 mm (2.72 in), a difference of 2 mm (3%). At its widest point the Fenix E18R V2.0 is 4 mm slimmer (22 vs 26 mm). Weights are published on different bases (Fenix E18R V2.0: 56 g with battery; ThruNite T1S V2: 41 g listed), so they are not directly comparable.
Brightness and throw
The ThruNite T1S V2 is rated brighter: 1,212 lm maximum vs 1,200 lm for the Fenix E18R V2.0, 1% more. For beam distance the ThruNite T1S V2 reaches further: 184 m vs 146 m rated throw (26% more).
Battery
The Fenix E18R V2.0 runs on a removable 16340 battery; the ThruNite T1S V2 runs on a removable 18350 battery. For scale, a 16340 cell is about 16 × 34 mm and a 18350 about 18 × 35 mm (nominal).
Type
Both are EDC lights in our catalog with a tube body.
Which should you buy?
Choose the Fenix E18R V2.0 if you want a slimmer profile (4 mm narrower). Choose the ThruNite T1S V2 if you want longer throw (184 m vs 146 m). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Fenix E18R V2.0 Check price ↗ ThruNite T1S V2
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E18R V2.0 vs T1S V2 FAQ
Which is smaller, the Fenix E18R V2.0 or the ThruNite T1S V2?
The Fenix E18R V2.0 is the shorter light: 67 mm (2.64 in) against 69 mm (2.72 in), a difference of 2 mm (3%). At its widest point the Fenix E18R V2.0 is 4 mm slimmer (22 vs 26 mm). Weights are published on different bases (Fenix E18R V2.0: 56 g with battery; ThruNite T1S V2: 41 g listed), so they are not directly comparable.
Which is brighter, the Fenix E18R V2.0 or the ThruNite T1S V2?
The ThruNite T1S V2 is rated brighter: 1,212 lm maximum vs 1,200 lm for the Fenix E18R V2.0, 1% more. For beam distance the ThruNite T1S V2 reaches further: 184 m vs 146 m rated throw (26% more).
Do the Fenix E18R V2.0 and ThruNite T1S V2 use the same battery?
The Fenix E18R V2.0 runs on a removable 16340 battery; the ThruNite T1S V2 runs on a removable 18350 battery. For scale, a 16340 cell is about 16 × 34 mm and a 18350 about 18 × 35 mm (nominal).
Compare Fenix E18R V2.0 with similar lights
Compare ThruNite T1S V2 with similar lights
More
Sources
- Fenix E18R V2.0: specs from Fenix product page (manufacturer). Drawing: outline from published specs. Price $59.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
- ThruNite T1S V2: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. No verified price yet.
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