Arctic Cat Prowler Mudpro 500 550 650 700 881 Xenon HID Super Blue White Headlight Bulbs Great replacements for standard halogen headlight bulbs. Replacement headlight bulb that puts off a brighter and whiter light than standard bulbs while pulling the same wattage. Brighter and whiter light gives the rider better depth perception and contrast compared to standard Halogen bulbs making night riding safer and more enjoyable. 100% plug and play. Nothing else required to use these bulbs. Price is for two bulbs. 35/35W power usage, 60/60W light output.