We used four of these lights to cover a 35 foot stage, from a distance of about 13 feet.The lights come with everything you need, except for the mounting clamps. We purchased those separately, and mounted the lights to a pipe hanging from the ceiling.Strongly recommend buying the barn doors from this manufacturer, so that you can have better control over the light. We also purchased a roll of Cinefoil to really fine-tune the spill.Initially we received an older model of the lights, which had a defect, causing a flicker, but the manufacture was very responsive and worked with us to resolve the issue.This company is very reputable, and stands behind their products. We look forward to purchasing additional lights in the future as we expand our lighting system.