Before I bought those lights I had been in touch with the manufacturer (http://spyderauto.com/home.php) and they assured me that they were indeed SAE/DOT certified, but they also said that they wouldn't sell direct to an end-user, only to distributors.
Took me ages to find one that would stock them for me and it also took forever to be shipped from the US.
Spyder also said they used Philips LED assemblies in their lights and decent resistor packs.
I'm happy with them, they're bright enough to be seen in bright sunlight, just hope that they don't degrade in sunlight now you mention it. They better not as they were pretty damn expensive!
I'm not going to fit LED indicator bulbs or fog/reverse lights either. Doesn't really get foggy in my area
I thought I might have issues with the indicators being in the middle but they work a treat.
They shaved the beards of our mothers with razors made of bronze,
They stole all our good LPs and ate all the potato scones.