Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: FOURSEVENS Maelstrom S12/ MMU Black Finish / Cool White LED; 1XRCR26650; 800 Lumens
Product description: Our most powerful lights, the rugged Maelstrom tactical series is designed to perform in the harshest environments. Reliable and versatile, these lights are the result of years of research and input from military and law enforcement personnel. Available in a variety of tactical interfaces and high-output lithium battery types. With outputs ranging from 350 to a staggering 1200 lumens, these lights will show the dark who's boss., Our most powerful lights, the rugged Maelstrom tactical series is designed to perform in the harshest environments. Reliable and versatile, these lights are the result of years of research and input from military and law enforcement personnel. Available in a variety of tactical interfaces and high-output lithium battery types. With outputs ranging from 350 to a staggering 1200 lumens, these lights will show the dark who's boss.
Product feature: Brightness Levels: Low: 120 lumens, 13 hrs/High: 800 lumens, 1.5 hrs, Special Modes: NA, Included accessories: Spare-O-rings, holster (Battery and Battery Charger NOT included), Lens Material: Hardened glass lens, sapphire coating, antireflective coating, Body Material: Type-III hard-anodized aircraft-grade aluminum
Product brand: Foursevens
Target attributes: Weight
Answer: attribute: weight
value: None
source: None