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: uxcell Car White 881 7.5W 5 SMD LED Lens Fog Light Day Running Lamp Bulb 2pcs
Product feature: LED Number: 5; Cross Reference: 881 862 886 889 894 896 898; Product Name: Car LED Light, Material: Plastic,Metal; Color: Black,Silver Tone; Package Content: 2 x Car LED Light, Socket Type: 881; Light Color: White, Power: 7.5W; Voltage: DC 12V, Dimensions: 5 x 3.5cm/2 x 1.4 inches(L*W); Net Weight: 20g
Product price: $12.81
Product brand: uxcell
Target attributes: Bulb Type
Answer: attribute: bulb type
value: led
source: product title
attribute: bulb type
value: led
source: product feature