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Granvela Pro400 rechargeable LED headlamp with adjustable strap

Granvela

Granvela Pro400 Rechargeable LED Headlamp 400 Lumens IPX4

SKU CH-KY5F-HA8NG

A rechargeable headlamp delivering 400 lumens with IPX4 water resistance for hands-free outdoor and indoor use

  • TypeFlashlight
  • 400-lumen output lights up campsites and trails
  • Rechargeable battery removes the need for disposable cells
  • IPX4 water resistance handles rain and splashes
  • Seven dimming modes adapt brightness to any task
  • Green and red LEDs preserve night vision for reading maps

Brightness and water resistance

The Granvela Pro400 is a rechargeable LED headlamp that delivers 400 lumens of light. It is built for campers, runners and anyone needing reliable hands-free illumination in wet conditions. The IPX4 rating means it withstands splashing water from any direction.

Upgrading from disposable cells

This model replaces headlamps that rely on single-use batteries with a USB-rechargeable power source. The jump is worth it when you want to avoid carrying spare cells and prefer topping up from a power bank or wall adapter between outings.

Modes and runtime headroom

Seven selectable modes include green and red LEDs for night-vision preservation plus a white beam that is up to 15 times brighter than standard LED technology. The Smart Dimming system lets you match output to the task, while the shatterproof lens survives 1-metre impacts.

Highlights

  • 400-lumen output lights up campsites and trails
  • Rechargeable battery removes the need for disposable cells
  • IPX4 water resistance handles rain and splashes
  • Seven dimming modes adapt brightness to any task
  • Green and red LEDs preserve night vision for reading maps

Specifications

TypeFlashlight

Questions about this item

What head size does the adjustable strap fit?

The elastic headband stretches to fit most adult head sizes and can be worn over a cap or helmet.

How do I charge the built-in battery, and what is the common mistake?

Plug the supplied USB cable into the headlamp's micro-USB port; the mistake is using a high-power phone charger that can overheat the cell.

When will the rechargeable cell need replacing?

After several hundred charge cycles the runtime drops noticeably; the sealed unit is then replaced as a whole.

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