Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: DUFU-STORE Uv Ultra Violet Flashlight Torch 3 Aaa 9 Led Invisible Marker
Product description: Brand new and high quality 9 LED 1 Mode UV blacklight flashlight Long service life up to 10,000 hours Aluminium body, light weight Great for checking notes, credit cards, fluorescent inks (invisible inks), cracked glassware, or even crime scene LED Qty : 9 ultra bright LEDs Voltage: About 3.6V - 4.2V Power: 3x AAA battery (not included) Size: 8.8cm x 2.5cm x 2.5cm - 3.45inch x 0.98inch x 0.98inch Package Included: 1 x UV 9 LED Flashlight NO Retail Box. Packed Safely in Bubble Bag
Product feature: EXCELLENT GAP FILLING & HIGH LIGHT TRANSMITTANCE: Xfactor UV GLUE LOCA fills fine scratches that may occur upon removing the old adhesive. Xfactor UV GLUE eliminates mirror effect, rainbow effect, poor contrast, and low brightness, while improving touch sensitivity for that OEM look and feel you so desire!, 9 LED UV Light Flashlight
Product price: $2.19
Product brand: joyliveCY
Target attributes: Beam Type
Answer: attribute: beam type
value: None
source: None