Three year warranty Ideal lighting versatility for surgery and examination Available with single fixed ceiling mount or with track mounting Both lights are mounted on 57" articulating arms that are easily maneuverable and rotate 40º up and down from horizontal Both lamp heads rotate 540º Both lights have positioning handles mounted on the perimeter of the light Both lights have infrared absorbing glass cylinders to correct color temperature Surgery Light has removable sterilizable handle Surgery Light: 11-12V/90W halogen bulb that is easy to replace - bulb life: 2000 hours Surgery Light: Over 4000º Kelvin light - 6000 foot-candles illumination at 1 meter distance - 36" minimum depth of field Surgery Light: Large 16" diameter multi-faceted reflector is designed for improved shadow reduction Spot Light: 20V/150W halogen bulb and safety fuse are easy to replace - bulb life: 500 hours Spot Light: 3200° Kelvin light provides good visual clarity with low heat output - 2000 foot-candles homogenous illumination at 36" distance - continuously adjustable from 3" to 16" diameter spot at 36" distance