This review of the Nitecore NU20 headlamp highlights its strengths and weaknesses, particularly in comparison to the newer NU25. While the NU20 boasts a user-friendly interface and sufficient power for most hikes, several issues detract from its overall performance.
A key concern is the high mode. Its short, 5-minute burst of intense light seems impractical, wasting energy and potentially impacting runtime due to the timer resetting with each mode change. This behavior, while visually impressive in reviews, translates to unreliable performance in real-world use.
Runtime is another point of contention. The NU20's smaller battery (500mAh) results in noticeably shorter runtimes compared to both the new NU25 (650mAh) and even the older NU25 (610mAh). Nitecore's claims of superior LED efficiency, based on the old NU25, seem misleading given the new model's improved performance. The additional weight of the NU25 appears to be primarily due to the larger battery capacity, rather than the USB-C charging port and indicator. While the NU20's runtime might suffice for camping, it falls short for activities like night hiking, although the ability to use it while charging is a plus.
The NU20's beam pattern is also a drawback. Its narrow, spotty beam creates a noticeable hotspot, making it less desirable for close-quarters use. The central spot at 1 lumen even appears brighter than a Black Diamond Astro at 6 lumens. While the high CRI floody light is appreciated for camp use, it's too bright for nighttime navigation.
Finally, the headband design is criticized, with a preference expressed for the Petzl Bindi's design.
In conclusion, the Nitecore NU20 is a decent headlamp suitable for general hiking. However, considering the advancements in the NU25, particularly its improved battery life and beam pattern, it may be a better choice for serious night hikers. Nitecore missed an opportunity to significantly improve upon the original NU25 after seven years.
This review was sponsored in part by @pacific.gifts