I live without electricity and need a headlamp that is the most efficient possible in terms of battery life. What do you recommend? Is there a rechargeable one? or is it better to get rechargeable batteries w/an efficient headlamp?

Tech Specs:

Bulb Type:

Super-bright LED 

Power Source:

3 AA 

Backup Power Source:

no 

Battery Location:

front 

Batteries Included:

yes 

Headband Type:

single elastic strap 

Burn Time:

108 hours 

Voltage Regulator:

yes 

Modes:

3 lighting levels & boost mode 

Waterproof:

, water resistant 

Weight:

[with batteries] 6.2 oz 

Recommended Use:

backpacking, climbing, hiking, camping 

Manufacturer Warranty:

3 years