http://goinggear.com/spark-st6-500cw-xm-l-t6-cool-white-500-lumen-headlamp.html
- LED:CREE XML T6 Cool White
- 5 modes
- Super: 500lm/1.4hours, Max: 320lm/2.5hours, Med1: 150lm/8hours,
Med2: 50lm/28hours, Low: 8lm/8days - Battery One 18650 rechargeable Li battery or 2*CR123
- IPX8 waterproof
- Weight without battery：50g (1.8oz), with battery and headband：150g (5.3oz)
- Dimensions：3.07 inches length x 2.04inches width
- Operation: Single click to turn the headlamp on & off. Hold on button to go through Minimum, Medium 1&Medium 2, Max modes. when desire mode is reached, release to stop brightness ramping and current mode is memorized. At any mode, quick double click on button to trigger the Super mode. Super mode automatically steps down to Max mode after 5 minutes for protection.
Video review on Youtube
$99 via goinggear.com