Nitecore calls this tiny light a “headlamp mate” due to its ability to be used in tandem with a full-size headlamp, either clipped to the back of the head strap or worn elsewhere on the body. As a result, the NU05 is tailored to identification purposes. It features a total of five LEDs — two white, two red, and one lowoutput red indicator light — each of which includes a flashing mode. The NU05 also features one 35-lumen constant-on setting that can be paired with an optional head strap and bike mount bracket kit to provide emergency illumination. The built-in battery will last just one hour when used this way but can be quickly recharged via a micro-USB port. We noted that this light is the perfect size to clip onto a single loop of PALS webbing, making it a valuable accessory for nighttime hiking or backpacking.
Tiny size and light weight make it an ideal backup for emergency use For an extra $5, the head band and bike mount kit add versatility.
Short battery life when used in constant-on mode Lacks constant-on mode for red LEDs