The Amsco Quantum SQ-240 surgical light combines the flexibility and positioning ease of a small diameter lighthead with the superb optical performance of a large diameter lighthead. The SQ-240 O.R. lights are high-powered and easy to maneuver. These surgical lights have been designed for every size and type of surgical procedure. Features: Depth of Field: 26 inches Cylinder of Light: 18 inches Head size: 24 inches Peak Intensity: 18 inches Intensity Levels: Up to 12,000 foot