Acebeam Defender P16 vs Fenix TK05R size comparison
The Fenix TK05R is 16 mm (0.63 in) shorter than the Acebeam Defender P16, with about the same max diameter/width. Weights are published on different bases (with battery vs listed), so compare them with care.
The Fenix TK05R is 16 mm (0.63 in) shorter than the Acebeam Defender P16, with about the same max diameter/width. Weights are published on different bases (with battery vs listed), so compare them with care.
Dimensions
| Acebeam Defender P16 Check price ↗ | Fenix TK05R Check price ↗ | |
| Length | 131 mm (5.16 in) | 115 mm (4.53 in)−16 mm |
| Head / width | 32 mm (1.26 in) | 32 mm (1.26 in)same |
| Body | 23 mm (0.91 in) | 23.5 mm (0.93 in)+0.5 mm |
| Weight | 156 g listed | 124 g with battery |
| Battery | 18650 | 18350 |
| Max output | 1,800 lm | 1,000 lm |
| Throw | 484 m | 450 m |
| Type | Tactical | Tactical |
| Price | $79.95 at batteryjunction.com, as of Nov 4, 2026 | $79.95 at fenixlighting.com, as of Nov 4, 2026 |
| Source | batteryjunction.com sourced | fenixlighting.com sourced |
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Defender P16 vs TK05R: how they differ
Size and weight
The Fenix TK05R is the shorter light: 115 mm (4.53 in) against 131 mm (5.16 in), a difference of 16 mm (12%). At their widest points they are about the same (32 vs 32 mm). Weights are published on different bases (Acebeam Defender P16: 156 g listed; Fenix TK05R: 124 g with battery), so they are not directly comparable.
Brightness and throw
The Acebeam Defender P16 is rated brighter: 1,800 lm maximum vs 1,000 lm for the Fenix TK05R, 80% more. For beam distance the Acebeam Defender P16 reaches further: 484 m vs 450 m rated throw (8% more).
Battery
The Acebeam Defender P16 runs on a removable 18650 battery; the Fenix TK05R runs on a removable 18350 battery. For scale, a 18650 cell is about 18 × 65 mm and a 18350 about 18 × 35 mm (nominal).
Price
When we checked on Nov 4, 2026, the Acebeam Defender P16 was $79.95 at batteryjunction.com and the Fenix TK05R $79.95 at fenixlighting.com. 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 more output (1,800 lm vs 1,000 lm). Choose the Fenix TK05R if you want a shorter light (16 mm shorter). We compare published size, weight, output, throw and battery only, not runtime, interface or build quality.
Check price ↗ Acebeam Defender P16 Check price ↗ Fenix TK05R
We may earn a commission from these links, at no cost to you. Rankings are never paid for. Disclosure
Defender P16 vs TK05R FAQ
Which is smaller, the Acebeam Defender P16 or the Fenix TK05R?
The Fenix TK05R is the shorter light: 115 mm (4.53 in) against 131 mm (5.16 in), a difference of 16 mm (12%). At their widest points they are about the same (32 vs 32 mm). Weights are published on different bases (Acebeam Defender P16: 156 g listed; Fenix TK05R: 124 g with battery), so they are not directly comparable.
Which is brighter, the Acebeam Defender P16 or the Fenix TK05R?
The Acebeam Defender P16 is rated brighter: 1,800 lm maximum vs 1,000 lm for the Fenix TK05R, 80% more. For beam distance the Acebeam Defender P16 reaches further: 484 m vs 450 m rated throw (8% more).
Which is cheaper, the Acebeam Defender P16 or the Fenix TK05R?
When we checked on Nov 4, 2026, the Acebeam Defender P16 was $79.95 at batteryjunction.com and the Fenix TK05R $79.95 at fenixlighting.com. Prices change often, so check the current price before you buy.
Do the Acebeam Defender P16 and Fenix TK05R use the same battery?
The Acebeam Defender P16 runs on a removable 18650 battery; the Fenix TK05R runs on a removable 18350 battery. For scale, a 18650 cell is about 18 × 65 mm and a 18350 about 18 × 35 mm (nominal).
Compare Acebeam Defender P16 with similar lights
Compare Fenix TK05R with similar lights
More
Sources
- Acebeam Defender P16: specs from manufacturer published specs as listed by batteryjunction.com. Price $79.95 from batteryjunction.com, checked Nov 4, 2026; prices change often.
- Fenix TK05R: specs from Fenix product page (manufacturer). Price $79.95 from fenixlighting.com, checked Nov 4, 2026; prices change often.
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