Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: 2 x 3157 CREE White 6 LED COB Plasma Reverse Blinker Backup Brake Light Bulbs
Product description: Replacement part for socket: 3047 / 3056 / 3155 / 3156 / 3157 / 3157A / 3456 / 3457 / 4156 / 4157. SPECS: Size: 52mm x 18mm x 20mm
Product feature: Package Includes: 2 x 3157 COB white LED wedge bulb, Replacement part for socket: 3047 / 3056 / 3155 / 3156 / 3157 / 3157A / 3456 / 3457 / 4156 / 4157, Composed of6 LED's COB plasma panels for surround brightness, COB LED is a multi chips package into one panel which provides a solid and bright glow that are easy on the eye, Authentic Cree LED chipset
Product brand: HK5
Target attributes: Bulb Type
Answer: attribute: bulb type
value: led
source: product title
attribute: bulb type
value: led
source: product feature