The Tikka Plus and Zipka Plus from Petzl are amazing little headlamps that offer a ton of light in a tiny little package. Slightly larger than a golf ball, each light will easily fit in the palm of your hand (though the Tikka Plus is just a little bigger because of its bigger headband). And, they’re both water resistant, so you can use them in the rain or fog – just about anywhere you can think of (except underwater).
With three different levels of light, and a strobe mode, the four LED bulbs can illuminate up to 32 meters (104 feet) and last up to 150 hours on 3 AAA batteries (included). LED bulbs are great since they are much smaller than traditional bulbs – they are also extremely impact resistant, and since they have no filament, they last practically forever.
Note: Petzl recommends against using lithium batteries since their higher output during discharge can cause the lamp to overheat and possibly damage the LEDs.