Hope R4 headlamp

Hope R4 headlamp – £225 (at time of press)

From: www.hopetech.com

Pro’s: Very versatile with multiple light levels. Great flood light in larger caverns Good battery life at lower light settings

Cons: Needs second battery for extended trips underground. Overpowered for day to day surveying.

Hope R4 headtorch

Hope R4 headtorch

As part of the East Lancashire Bat Group project “Bats Underground” we’ve been undertaking swarming and hibernation surveys of Rossendale flagstone quarry tunnels where I found the light of my Petzl Spelios a bit underpowered in the larger caverns. This is where the Hope R4 headtorch came in.

The 4 x Cree XPG head unit

The 4 x Cree XPG head unit

The Hope R4 is designed primarily as a bike light but comes as standard with a headtorch adaptor to allow it’s use as a “multisport” light. With 4 Cree XPG LED’s sequenced through the top mounted button to offer 6 levels of light including a  maximum of 1000 lumens this is a serious bit of kit. In truth it’s probably too much even at it’s lowest level for day to day bat surveying, but for large systems it’s superb. The 2600mah li-ion battery offers burn times ranging from 1.15hours on high to 8.00 hours on low, I’ve alsways found the medium light setting to give plenty of light to navigate quarry tunnels while still offering circa 4 hours of light. A larger 5200mah battery option is available.

Specs:

  • Light Source: 4 x Cree XPG, R5 Bin
  • Light Output: 1000 measured lumens, 1446 generated lumens
  • Beam: Diffused uniform beam (+/- 12.5°)
  • Distance: 105m
  • Battery: 7.4v Li-Ion, 2600mAh
  • Charge time: 3 Hours
  • Weight: 235g (std), 338g (epic), 367g (endurance)
  • Power levels: 6 (two sequences of three), including flash
  • Burn time: 1:15 hrs – 8:00 hrs