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- K1 vs E51D
Acebeam K1 vs Nextorch E51D
What K1 does better (2) and where E51D wins (5) — every spec side by side.
Why is K1 better than E51D?
- Weight77 g vs 95 g+23%
- Maximum runtime60 h vs 55 h+9%
Why is E51D better than K1?
- Maximum output1,000 lm vs 2,100 lm2.1×
- Battery capacity1,000 mAh vs 2,600 mAh2.6×
- Beam distance (ANSI FL1)223 m vs 275 m+23%
- Peak beam intensity12,432 cd vs 18,906 cd+52%
- Impact resistance (drop)1.5 m vs 2 m+33%
Specifications
Side by side
| Light output | ||
| Maximum output | 1,000 lm | 2,100 lm |
| Peak beam intensity | 12,432 cd | 18,906 cd |
| Beam distance (ANSI FL1) | 223 m | 275 m |
| Light source | LED | LED |
| LED & beam | ||
| LED maker | Cree | — |
| Colour temperature | 6,500K | — |
| Battery & charging | ||
| Battery | 14500 Li-ion, AA | 18650 Li-ion |
| Battery capacity | 1,000 mAh | 2,600 mAh |
| Maximum runtime | 60 h | 55 h |
| Rechargeable | Yes | Yes |
| USB-C charging | Yes | Yes |
| Battery level indicator | — | Yes |
| Also runs on AA/AAA/CR123A | Yes | — |
| Build & durability | ||
| Protection rating | IP68 | IPX8 |
| Water protection (IPx) | IPx8 | IPx8 |
| Impact resistance (drop) | 1.5 m | 2 m |
| Body material | Aluminium | Aluminium |
| Pocket clip | Yes | Yes |
| Size & weight | ||
| Length / height | — | 142 mm |
| Head diameter / width | — | 27 mm |
| Weight | 77 g | 95 g |
| Modes & features | ||
| Switch | Tail switch, Rotary / scroll wheel | — |
| Strobe | Yes | — |
| UV light | Yes | — |
