If you’re looking for one of the brightest headlamps ever made, look no further than the Olight H2R Nova lithium ion powered lamp. This review compares the cool and neutral white version of the H2R along with the Armytek Wizard USB, the Spark SG6, the Olight H1R Nova, and the Armytek Tiara A1 Pro. This review tests runtimes, output levels, and has a beamshot section comparing other high end headlamps. You can buy this at Going Gear.
Cool White Version: http://goinggear.com/olight-h2r-nova-2300-lumen-1-x-18650-cree-xhp50-led-headlamp.html
Neutral White Version: http://goinggear.com/olight-h2r-nova-2300-lumen-1-x-18650-cree-xhp50-nw-led-headlamp.html