Nitecore NU27 600 vs Sofirn HS21

The Nitecore NU27 headlamp lets you dial color temperature between warm, neutral, and cool white, which covers a range of outdoor activities. Reviewers noted the light 1.98 oz body and USB-C charging that finishes in about 1.25 hours. Brightness modes are plentiful and performance holds steady across the color settings. Criticism landed on the removable headlamp body, which reviewers saw as having no practical benefit,. Hikers and campers who want a light, multi-function lamp will like it; anyone who needs a sturdier attachment system should look at other models.

The Sofirn HS21 is a T-shaped headlamp with an infrared gesture sensor, one spotlight LED, six floodlight LEDs, and three red LEDs. Reviewers liked the hands-free operation and the range of lighting modes, and the floodlight LEDs hit a high CRI at 99. Measured flood lumens didn't match the advertised figures, though. Bracket durability also came up as a build-quality concern. It suits people who want flexible lighting options with gesture control, but anyone who needs the lumen figures to be exact should look elsewhere.