Not sure mate. Would need to check on their site. Why do I get the feeling that its free for group buy ones or might be wrong.
Sounds like I may work for H4U but I brought a second hand kit that was 18mths old and it was solid as a rock going strong after being shipped etc. Their are lots of reports on here and else where of cheap eBay kits dying in less than a year and not being that much better than halogen bulbs.
Why skimp on something that is safety related is how I see it and don't our Seats deserve the best