I bought all mine off ebay, although the seller is long gone. I've had 1 10W led fail (out of 6), in 3 years (now replaced from another ebay seller) and my 30W LED is still as good as new after 4 years. Not branded so not sure who made them. I also always buy lights and a separate PIR which I usually buy from a recognised company such as Screwfix. That way, when the PIR wears out, which they inevitably do, you only have to swap out the PIR not a whole light that's otherwise working. PIR's are cheap - less than a tenner, and in my experience last 3-5 years before the range reduces and they need changing.