Acebeam Defender P16 vs Fenix TK25R size comparison
The Fenix TK25R is 33 mm (1.30 in) longer than the Acebeam Defender P16, and 4 mm wider at its widest point. Weights are published on different bases (with battery vs listed), so compare them with care.
The Fenix TK25R is 33 mm (1.30 in) longer than the Acebeam Defender P16, and 4 mm wider at its widest point. Weights are published on different bases (with battery vs listed), so compare them with care.
Dimensions
| Acebeam Defender P16 Check price ↗ | Fenix TK25R Check price ↗ | |
| Length | 131 mm (5.16 in) | 164 mm (6.46 in)+33 mm |
| Head / width | 32 mm (1.26 in) | 36 mm (1.42 in)+4 mm |
| Body | 23 mm (0.91 in) | 26.2 mm (1.03 in)+3.2 mm |
| Weight | 156 g listed | 225 g with battery |
| Battery | 18650 | One included 5000 V2.0 rechargeable Li-i |
| Max output | 1,800 lm | 3,600 lm |
| Throw | 484 m | 350 m |
| Type | Tactical | Tactical |
| Price | $79.95 at batteryjunction.com, as of Nov 4, 2026 | $139.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | fenixlighting.com sourced |
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Defender P16 vs TK25R: how they differ
Size and weight
The Acebeam Defender P16 is the shorter light: 131 mm (5.16 in) against 164 mm (6.46 in), a difference of 33 mm (20%). At its widest point the Acebeam Defender P16 is 4 mm slimmer (32 vs 36 mm). Weights are published on different bases (Acebeam Defender P16: 156 g listed; Fenix TK25R: 225 g with battery), so they are not directly comparable.
Brightness and throw
The Fenix TK25R is rated brighter: 3,600 lm maximum vs 1,800 lm for the Acebeam Defender P16, 100% more. For beam distance the Acebeam Defender P16 reaches further: 484 m vs 350 m rated throw (38% more).
Battery
The Acebeam Defender P16 runs on a removable 18650 battery; the Fenix TK25R runs on its own battery (One included 5000 V2.0 rechargeable Li-i).
Price
When we checked on Nov 4, 2026, the Acebeam Defender P16 was $79.95 at batteryjunction.com and the Fenix TK25R $139.95 at fenixlighting.com, so the Acebeam Defender P16 cost $60.00 less. Prices change often, so check the current price before you buy.
Type
Both are tactical lights in our catalog with a tube body.
Which should you buy?
Choose the Acebeam Defender P16 if you want a shorter light (33 mm shorter), a slimmer profile (4 mm narrower) and longer throw (484 m vs 350 m). Choose the Fenix TK25R if you want more output (3,600 lm vs 1,800 lm). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Acebeam Defender P16 Check price ↗ Fenix TK25R
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Defender P16 vs TK25R FAQ
Which is smaller, the Acebeam Defender P16 or the Fenix TK25R?
The Acebeam Defender P16 is the shorter light: 131 mm (5.16 in) against 164 mm (6.46 in), a difference of 33 mm (20%). At its widest point the Acebeam Defender P16 is 4 mm slimmer (32 vs 36 mm). Weights are published on different bases (Acebeam Defender P16: 156 g listed; Fenix TK25R: 225 g with battery), so they are not directly comparable.
Which is brighter, the Acebeam Defender P16 or the Fenix TK25R?
The Fenix TK25R is rated brighter: 3,600 lm maximum vs 1,800 lm for the Acebeam Defender P16, 100% more. For beam distance the Acebeam Defender P16 reaches further: 484 m vs 350 m rated throw (38% more).
Which is cheaper, the Acebeam Defender P16 or the Fenix TK25R?
When we checked on Nov 4, 2026, the Acebeam Defender P16 was $79.95 at batteryjunction.com and the Fenix TK25R $139.95 at fenixlighting.com, so the Acebeam Defender P16 cost $60.00 less. Prices change often, so check the current price before you buy.
Do the Acebeam Defender P16 and Fenix TK25R use the same battery?
The Acebeam Defender P16 runs on a removable 18650 battery; the Fenix TK25R runs on its own battery (One included 5000 V2.0 rechargeable Li-i).
Compare Acebeam Defender P16 with similar lights
Compare Fenix TK25R with similar lights
More
Sources
- Acebeam Defender P16: specs from manufacturer published specs as listed by batteryjunction.com. Drawing: outline from published specs. Price $79.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
- Fenix TK25R: specs from Fenix product page (manufacturer). Drawing: outline from published specs. Price $139.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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