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: Aputure Amaran Halo AHL-HC100 CRI 95+ LED Macro Ring Flash Light for Canon DSLR Camera
Product description: Features: 1.Higher CRI value (CRI 95+), more natural color render. CRI 95+ has applications in areas where color differentiation is crucial. 2.100 beans in 1 compact ring The brightness is up to 1020 lux at 0.5 meter / 19.7inches and color temperature is very steady (5500k + 200k). Flicker-free in light mode, perfect for shooting video. 3. Stepless dim with precise output It has three brightness levels : one quarter, half and full. Easy to master brightness output. 4. AF-assist lighting Half press shutter to activate AF-assist lamp to make focus much easier. 5.Flash mode is 200% brighter than continuous mode Capture subjects in fine detail under flash mode. 6.Work with flash triggers as a off-camera flash. 7.Unique ring mount method 8.Six light modes: AHL-HC100 provides six modes: full and half mode in both ambience and flash for creative shootings. 9.Eight lens adapter rings included (49, 52, 55, 58, 62, 67, 72, and 77mm.) 10. AHL-HC100 LED Ring Flash can meet much higher level macro photography including nature, medical, scientific photography whether you are a professional or hobbyist. Specification : LED Number:100 Color temperature:5500k + 200k LED Angle:45 CRI:>95 Ra Sync speed:>1/200 S Illumination:50 cm 1020 lux ;100 cm 305 lux Battery:4 AA batteries Power:6 W Supply power voltage:DC 3.6 V-6.7 V Average life span:>100.000 hours Compatible with: D50,D70,D70S,D80,D90,D7000,D100,D200,D300,D300S,D700,D1,D1X,D1H,D2,D2XS,D2HS,D3,D3S,D3X,D40,D40X,D60,D3000,D3100,D5000,D5100 Package Contents: 1 x AHL-HC100 LED Light Macro Ring Flash 8 x Ring Mount for Different Lenses:49mm, 52mm, 55mm, 58mm, 62mm, 67mm, 72mm, 77mm 1 x User's Manual 1 x Warranty Card
Product feature: Higher CRI value (CRI 95+), more natural color render. CRI 95+ has applications in areas where color differentiation is crucial, The brightness is up to 1020 lux at 0.5 meter / 19.7inches and color temperature is very steady (5500k200k). Flicker-free in light mode, perfect for shooting video, Stepless dim with precise output It has three brightness levels : one quarter, half and full. Easy to master brightness output, AF-assist lighting Half press shutter to activate AF-assist lamp to make focus much easier. Work with flash triggers as a off-camera flash
Product price: $4.59
Product brand: Aputure
Target attributes: Guide Number
Answer: attribute: guide number
value: None
source: None