cheap MR 16 bulbs

[TheBeam]

I went to my local Walfart and found them for $2.84. They were hiding with the Christmas lights. This is what they had, all for $2.84;

MR16 (12v 20w)
MR16+c (12v 50w)

There were some smaller ones, about 1 3/8" across the top.

MR11 (12v 5w)
MR11 (12v 20w)
MR11+c (6v 5w)

I picked up a few and don't know what the "+c" means, do you?

 

[Banshee]

MR16 with 51 mm diameter Dichroic Reflector (with cover)

 

[TheBeam]

Yep.

 

[PlayboyJoeShmoe]

Problem is they are almost surely flood MRs over spot MRs.