The Competition Electronics Indoor Lighting Setup is the ideal light source for your ProChrono! The Indoor Lighting System is easy to install. Just attach the light bars to the chronograph guide wires, connect power and you are ready to shoot.FeaturesPatented infra-red LED design eliminates light bulbsRed LED "ON" indicator lightsWorks with all Prochrono modelsDual voltage 100-240voltsAC, 50-60Hz adapter includedWill also operate on a 24voltDC source(ex. two 12volt batteries wired in series)Packing box is great for storage and transport