Nitecore NU33


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Nitecore NU33
  • Dimensions: 62.3 mm x 46 mm x 35.6 mm / 2.45" x 1.81" x 1.4" (including bracket)
  • Weight: 95.9 g / 3.37 oz. (including bracket and headband)
  • Unibody optical lens system to reflect a soft, uniform light
  • Built-in 2000mAh li-ion battery
  • Built-in intelligent li-ion battery charging circuit with a USB-C charging port (5V-2A)
  • Designed with two button different in shape and feel for easy one-handed operation
  • Made from durable PC and aluminium materials
  • Compact and lightweight
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Nitecore NU33

1 Review

5.0 Overall rating



Good outdoors headlamp with well-thought-out modes and brightness spacing. The strap is reliable enough to run with and controls are easy to operate without taking the light off my head.


The Nitecore NU33 head torch has a maximum output of 700 lumens from the primary white LED and is powered by a built-in, li-ion battery. The light is rechargeable via a USB-C port on the base of the light for fast, efficient charging (cable included).

In addition to the main light which offers 3 brightness levels plus SOS and beacon, the NU33 features an auxiliary red light and an auxiliary high CRI white light. The red mode effectively protects night vision and is ideal for night photography, wildlife observation and stargazing. The high CRI (≥90) white light offers very low and warm outputs at 50 (low) and 6 (ultralow) lumens.

The headlamp is operated by a user-friendly dual switch interface on top of the light. The power button turns the light on and off and adjusts the brightness level, and the mode button switches the light sources.

To ensure you know when it's time to recharge, the NU33 has a built-in power indication which is access by a short press of the mode button. The LED lights show as follows:

  • 4 lights = 100% approx.
  • 3 lights = 75% approx.
  • 2 lights = 50% approx.
  • 1 light = 25% approx.

Brightness Levels:
Primary White Light
Turbo: 700 lumens - 4 hrs runtime
High: 200 lumens - 9 hrs runtime
Mid: 60 lumens - 38 hrs runtime

Auxiliary White Light
Low: 50 lumens - 47 hrs runtime
Ultralow: 6 lumens - 147 hrs runtime

Auxiliary Red Light
Constant On: 13 lumens - 26 hrs runtime
Slow Flashing: 13 lumens - 50 hrs runtime

Plus SOS and Beacon (700 lumens).

Maximum beam distance 135 meters, waterproof to IP66 and resistant to impacts up to 1 meter.

Includes: USB-C charging cable.

Nitecore NU33 user manual can be downloaded here.

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