Features:Uses 100 hign color rendering index LEDs (CRI >95 Ra)， more natural color render.Twice brighter than previous version (60 LEDs).No flicker in Light Mode， perfect for shooting video.Twice brighter in Flash Mode than in Light Mode.Flexible connections between ring flash and controller.Stepless brightness control.Left and right flash modes for more effects.Universal metal hot shoe.8 lens adapter rings included (49-77mm). Specifications:Model: Aputure Amaran Halo HN100Compatibility: for NikonLED quantities: 100LED angle: 45 degreesCRI: Above 95 RaIllumination: 50cm--1020 lux100cm--305 luxSupply power voltage: DC 3.6V-6.7VColor temperature: 5500K +/- 200KSync speed: Above 1/200SPowered by : 4 * AA batteries (not included)Power: Below 6WAverage life span: Above 100，000 hoursPackage size: 20 * 13.5 * 9.2cm / 7.9 * 5.3 * 3.6inPackage weight: 423g / 14.9oz Package List:1 * LED Ring Flash8 * Adapter Rings (49， 52， 55， 58， 62， 67， 72 and 77mm)1 * User Manual (English)(other accessories are not included)