Updating PY21W to LED DRL

[snapdragon]

The ones I have at the moment are by HSUN, they are advertised as 810 Lumens, which is double the 21w originals.
http://www.aliexpress.com/item/2pcs-...746949907.html
$40 a pair, but these are by far the best I have tried, in that the light is very white and full spectrum like cars with OE LED DRLs. You can easily see them reflected on the back of the car in front, even in sunny weather.
The overall look is just like the W12, if not better.
I think it's important to have the side-firing LEDs to bounce off the reflector as well as the front-mounted one.
They get too hot to touch, about 85˚c when I measured them in the house.
They still throw faulty bulb errors though, so I really have to swap the wire for the sidelight wire but hate working at the back of these headlights as it's cramped.