Had a number of PM's but going to answer so useful to everyone - apologies for managing to leave off the size! To be fair I'll let people have dibs in order of when they responded. (afraid you're 3rd Al.)
A)they made the hardybikers run (february) from sheffield to(and around) the lake district do-able. And that said I have very poor circulation - usually have to stop to warm my hands on the pipework even at this time of year!
B)come with all wiring which is a Y-piece which goes inside your jacket, a switch, and wiring to battery with an inline waterproof fuse. All connections look well made and have weatherproof seals over.
The gloves are "Size 2" 'medium-large'