Spot 400 HeadlampFor a technical user who expects all around performance and features out of their headlamp but still values a small size and compact package. This user has the need to run the lamp on alkaline batteries if caught away from a power source for a long expedition. DETAILS Dual Fuel: Maximum flexibility to utilize either the rechargeable Lithium Ion BD 1500 battery or Alkaline cells (included) 400 Lumen max output PowerTap??? Technology allows instant