Add-On Kit H4 for Item 50544 12V Conversion, includes all bulbs, closed AGM battery, flasher relay, horn, headlight and adapter wiring loom

AddOn Basic+H4 12V Set

• The big all-round carefree package - really contains ALL bulbs and devices that are useful and necessary when converting to 12V for the first time, including an H4 bulb insert; supplement to item 50544 and item 50555
• Suitable for all XT250 and XT500-'85 with original headlight housing