These Biolite headlamps are rechargeable with a micro USB, and use a unique headband design where the headlamp electronics are integrated into the fabric band in order to create a no bounce fit.  This Biolite Headlamp 330 is their best all around model for most people, has 4 different lighting modes including a red night vision mode, and provides up to 330 lumen of light.

Details

• 330 Lumen Maximum Output
• 4 Modes Include: White Flood, White Spot, White Strobe, Red Flood
• Electronics are Integrated into the Fabric Headband for Stability
• Front Panel Tilts Down
• 900 mAh, 3.4 Wh Lithium Ion Micro USB Rechargeable Battery
• 40 Hours on Low, 3.5 Hours on High
• 16 Meter Floodlight Beam, 75 Meter Spot Beam
• 2.42 oz (69 g)