Convoy S21E vs ThruNite TC15 V3 size comparison
The ThruNite TC15 V3 is 5.6 mm (0.22 in) longer than the Convoy S21E, with about the same max diameter/width. Weights are published on different bases (listed vs without battery), so compare them with care.
The ThruNite TC15 V3 is 5.6 mm (0.22 in) longer than the Convoy S21E, with about the same max diameter/width. Weights are published on different bases (listed vs without battery), so compare them with care.
Dimensions
| Convoy S21E Check price ↗ | ThruNite TC15 V3 Check price ↗ | |
| Length | 116.4 mm (4.58 in) | 122 mm (4.80 in)+5.6 mm |
| Head / width | 27.3 mm (1.07 in) | 27 mm (1.06 in)−0.3 mm |
| Body | 27.3 mm (1.07 in) | 23 mm (0.91 in)−4.3 mm |
| Weight | 88 g without battery | 74 g listed |
| Battery | 21700 | 18650 |
| Max output | — | 2,403 lm |
| Throw | — | 223 m |
| Type | EDC | EDC |
| Price | from $27.99 at flashlightgo.com, as of Nov 4, 2026 | $59.99 at batteryjunction.com, as of Nov 4, 2026 |
| Source | flashlightgo.com sourced Output depends on LED option | batteryjunction.com sourced Retailer lists W 27 x H 23 mm |
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S21E vs TC15 V3: how they differ
Size and weight
The Convoy S21E is the shorter light: 116.4 mm (4.58 in) against 122 mm (4.80 in), a difference of 5.6 mm (5%). At their widest points they are about the same (27.3 vs 27 mm). Weights are published on different bases (Convoy S21E: 88 g without battery; ThruNite TC15 V3: 74 g listed), so they are not directly comparable.
Brightness and throw
The ThruNite TC15 V3 is rated at 2,403 lm; we have no published maximum for the Convoy S21E. Output for the Convoy S21E depends on the LED option chosen.
Battery
The Convoy S21E runs on a removable 21700 battery; the ThruNite TC15 V3 runs on a removable 18650 battery. For scale, a 21700 cell is about 21 × 70 mm and a 18650 about 18 × 65 mm (nominal).
Price
When we checked on Nov 4, 2026, the Convoy S21E was from $27.99 at flashlightgo.com and the ThruNite TC15 V3 $59.99 at batteryjunction.com, so the Convoy S21E cost $32.00 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 Convoy S21E if you want a shorter light (5.6 mm shorter). On the specs we track, the Convoy S21E is ahead or level everywhere; the ThruNite TC15 V3 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 ↗ Convoy S21E Check price ↗ ThruNite TC15 V3
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
S21E vs TC15 V3 FAQ
Which is smaller, the Convoy S21E or the ThruNite TC15 V3?
The Convoy S21E is the shorter light: 116.4 mm (4.58 in) against 122 mm (4.80 in), a difference of 5.6 mm (5%). At their widest points they are about the same (27.3 vs 27 mm). Weights are published on different bases (Convoy S21E: 88 g without battery; ThruNite TC15 V3: 74 g listed), so they are not directly comparable.
Which is cheaper, the Convoy S21E or the ThruNite TC15 V3?
When we checked on Nov 4, 2026, the Convoy S21E was from $27.99 at flashlightgo.com and the ThruNite TC15 V3 $59.99 at batteryjunction.com, so the Convoy S21E cost $32.00 less. Prices change often, so check the current price before you buy.
Do the Convoy S21E and ThruNite TC15 V3 use the same battery?
The Convoy S21E runs on a removable 21700 battery; the ThruNite TC15 V3 runs on a removable 18650 battery. For scale, a 21700 cell is about 21 × 70 mm and a 18650 about 18 × 65 mm (nominal).
Compare Convoy S21E with similar lights
Compare ThruNite TC15 V3 with similar lights
More
Sources
- Convoy S21E: specs from manufacturer published specs as listed by flashlightgo.com. Price from $27.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
- ThruNite TC15 V3: specs from manufacturer published specs as listed by batteryjunction.com. Price $59.99 from batteryjunction.com, checked Nov 4, 2026; prices change often.
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