Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: NiteCore MT10A CREE XM-L2 LED Flashlight 920 Lumen
Product description: Multi-Task; Nitecore; MT10A; CREE XM-L2 U2; Battery Type: 1xAA1xIMR14500; Maximum output: 920 lumens; Holster, clip, lanyard, spare tail cap cover, spare O-ring.
Product feature: Battery Type: 1xAA1xIMR14500, Maximum output: 920 lumens, Flashlights
Product price: $55.99
Product brand: Nitecore
Target attributes: Beam Type
Answer: attribute: beam type
value: None
source: None