Klarus G15 vs Sofirn SP36 Pro size comparison
The Sofirn SP36 Pro is 5.7 mm (0.22 in) longer than the Klarus G15, and 23 mm wider at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
The Sofirn SP36 Pro is 5.7 mm (0.22 in) longer than the Klarus G15, and 23 mm wider at its widest point. Weights are published on different bases (without battery vs listed), so compare them with care.
Dimensions
| Klarus G15 Check price ↗ | Sofirn SP36 Pro Check price ↗ | |
| Length | 121 mm (4.76 in) | 126.7 mm (4.99 in)+5.7 mm |
| Head / width | 27 mm (1.06 in) | 50 mm (1.97 in)+23 mm |
| Body | 25 mm (0.98 in) | — |
| Weight | 70 g listed | 300 g without battery |
| Battery | 21700 | 3x 18650 |
| Max output | 4,200 lm | 8,000 lm |
| Throw | 200 m | — |
| Type | EDC | Thrower / search |
| Price | $79.95 at batteryjunction.com, as of Nov 4, 2026 | from $56.99 at flashlightgo.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | flashlightgo.com sourced Only head diameter listed |
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G15 vs SP36 Pro: how they differ
Size and weight
The Klarus G15 is the shorter light: 121 mm (4.76 in) against 126.7 mm (4.99 in), a difference of 5.7 mm (4%). At its widest point the Klarus G15 is 23 mm slimmer (27 vs 50 mm). Weights are published on different bases (Klarus G15: 70 g listed; Sofirn SP36 Pro: 300 g without battery), so they are not directly comparable.
Brightness and throw
The Sofirn SP36 Pro is rated brighter: 8,000 lm maximum vs 4,200 lm for the Klarus G15, 90% more.
Battery
The Klarus G15 runs on a removable 21700 battery; the Sofirn SP36 Pro runs on removable 3x 18650 batteries. 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 Klarus G15 was $79.95 at batteryjunction.com and the Sofirn SP36 Pro from $56.99 at flashlightgo.com, so the Sofirn SP36 Pro cost $22.96 less. Prices change often, so check the current price before you buy.
Type
The Klarus G15 is listed as edc and the Sofirn SP36 Pro as thrower / search, so they suit different jobs.
Which should you buy?
Choose the Klarus G15 if you want a shorter light (5.7 mm shorter) and a slimmer profile (23 mm narrower). Choose the Sofirn SP36 Pro if you want more output (8,000 lm vs 4,200 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Klarus G15 Check price ↗ Sofirn SP36 Pro
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G15 vs SP36 Pro FAQ
Which is smaller, the Klarus G15 or the Sofirn SP36 Pro?
The Klarus G15 is the shorter light: 121 mm (4.76 in) against 126.7 mm (4.99 in), a difference of 5.7 mm (4%). At its widest point the Klarus G15 is 23 mm slimmer (27 vs 50 mm). Weights are published on different bases (Klarus G15: 70 g listed; Sofirn SP36 Pro: 300 g without battery), so they are not directly comparable.
Which is brighter, the Klarus G15 or the Sofirn SP36 Pro?
The Sofirn SP36 Pro is rated brighter: 8,000 lm maximum vs 4,200 lm for the Klarus G15, 90% more.
Which is cheaper, the Klarus G15 or the Sofirn SP36 Pro?
When we checked on Nov 4, 2026, the Klarus G15 was $79.95 at batteryjunction.com and the Sofirn SP36 Pro from $56.99 at flashlightgo.com, so the Sofirn SP36 Pro cost $22.96 less. Prices change often, so check the current price before you buy.
Do the Klarus G15 and Sofirn SP36 Pro use the same battery?
The Klarus G15 runs on a removable 21700 battery; the Sofirn SP36 Pro runs on removable 3x 18650 batteries. For scale, a 21700 cell is about 21 × 70 mm and a 18650 about 18 × 65 mm (nominal).
Compare Klarus G15 with similar lights
Compare Sofirn SP36 Pro with similar lights
More
Sources
- Klarus G15: specs from manufacturer published specs as listed by batteryjunction.com. Price $79.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
- Sofirn SP36 Pro: specs from manufacturer published specs as listed by flashlightgo.com. Price from $56.99 from flashlightgo.com, checked Nov 4, 2026; prices change often.
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