Amaran Halo LED is the perfect macro lighting solution for your DSLR camera. It operates smoothly, giving you steady, bright, uniform light and it Achieve your desired photographic effects. It also has six lighting options: full brightness, left-side, right-side, either a continuously or as a flash. This will help you meet a variety of lighting needs. 
Aputure Amaran Halo LED Ring Flash is the best tool for your macro photography needs.

Specification 
Ring Light LED Aputure Halo HC100
LEDs number: 100 pieces. 
Angle: 45 ° 
CRI & gt, 95 Ra 
Illumination: 50 cm = 1020 lux / 100 cm = 305 lux 
Color temperature: approx. 5500 +/- 200 K K 
Ring dimensions: 105 mm in, out 
65 mm Weight: 170 g (excluding batteries) 
Power : 4 x AA 1.5V (Alcaline or Ni-MH) <