Bad leds?

I bought some leds to replace my blown ones for my dash. Got these type off eBay, took a month to arrive. Tried to install them and they won't work, turned them the other way around and still won't work. Any ideas?
 
They are the same ones off the mr2oc u.k forum
http://www.mr2oc.co.uk/forums/41/155574.html
 
Bought 20 of them. Think I went through half of them then quit.
 

Oh these ones don't have wires, the ones that I got (above pic) have a flat pad/board.

lol rigging up a test bench is too hardcore for me.
There's possibility that all 20 of them are duds :(
 
Just bought another pair off a local distributor, once received will test them out, then I'll know for sure if first ones are duds or not. Just have to wait till then.

Oh is that it, google told me to do something more complex.
 
But anyway I used a multi meter instead, continuity mode, it would light up my old leds but not these ones.
It would however light up the individual smd led if I tested it where they were soldered at.