BE SEEN Day or Night on your Harley Davidson. 150 % brighter than the stock headlight. Available for both single or dual bulb H4 High/Low beam systems for your Harley Batwing, Road Glide, Road King and others. This kit is the BEST there is for your Harley. Don't compromise your safety, get the ultimate in HID Xenon plasma headlight system for your Harley Davidson. Single bulb headlight kits start at $ 79.00 plus shipping and handling. Dual H4 Bulb kits available for only $ 149.00 for all Road Glides Models.