The Z90 ENG Kit includes everything you need to add intelligent LED lighting to your pro camera.The intelligent Z90 LED light is over four times brighter than the Zylight Z50, while it’s only slightly larger and draws the same power.The palm-sized Z90 can instantly change between fully calibrated Tungsten and Daylight white light with the push of a button. Also, the Z90's Gel Mode gives you over 400 industry-standard theatrical gel numbers from four leading manufacturers. Color selection is fast and easy with the integrated digital display. There is also a creative Color Mode allowing you to dial in any color of the rainbow, including pastels.The integrated ZyLink technology allows you to wirelessly link together multiple Zylights to create a soft LED source as large as you need. Zylights that are linked together act in concert as if they were one unified LED source, with adjustments made on one light changing all lights in the group.You can easily control the Z90's output by snapping on the Accessory Adapter, allowing you to easily mount any standard 3-inch lighting accessory you may already have, such as barndoors or a snoot.