The Neewer 14ext Led Macro Ring Light For Nikon can produce a ring of light that reduces shadow which is excellent for taking macro shots.
The Flash tube is mounted in front of your lens producing light that wrap around the objects.
7 adaptor ring is included to enable flashlight to couple with lens.

Type: Close-up
Guide No.: 14/46(ISO100, in meter/feet)
Effective Distance: Approx. 20cm-5m
Color temperature: 5500K
Flash coverage: 80¡ã degrees in either direction
Firing configuration: Two flash tubes can be fired together or single
Flash ratio control: 1:8~1:1~8:1 in 1/2-stop increments
Flash exposure compensation: Manual, FBE: in. 1/3-stop increments
Flash exposure confirmation: Flash exposure confirmation lamp lights
AF Assist Lamp: Approx.40¡ã top and bottom and 45¡ã left and rights/On time: Approx. 12sec.
Recycling time: Approx. 0.1~5sec.
Supply battery: 4XAA/LR6 alkaline batteries
Battery life: Approx. 100~800 flashes(with AA/LR6 alkaline batteries)
External power source: Compact battery pack CP-E4