Learn about the Nitecore NU27 which the company says is the first headlamp with multicolour temperatures. The Nitecore NU27 rechargeable headlamp is a versatile and durable companion for outdoor activities. Its UHE LEDs emit a bright 600-lumen beam, adjustable to warm, neutral, or cool light. With multiple brightness levels and red light modes, the NU27 offers flexibility for various situations.