The R4+ lamp is small enough to use as a head torch, yet still gives out 2000 (1500 measured) lumens for use on the most demanding rides

• Power output is 2000 lumens (measured 1500 lumens)
• 6 different power levels 
• Pack includes either the 4 cell or 2 cell ES battery, quick bayonet fitting handlebar mount, helmet mount and head harness, and 1m extension cable
• Backlit LED power button lets you know which power mode your using
• ES Li-Ion battery pack with built in power gauge
• 2.25 hours run time on full power (using the 4 cell battery)
• Improved LED's
• Weight 426g (R4+ Headlamp and 4 cell ES battery)