That is the name of a PW remontant series. Moonlight is supposed to be hardy to 5a:

http://www.provenwinners.com/plants/hydrangea/lets-dance-moonlight-bigleaf-hydrangea-hydrangea-macrophylla

Because one of them is hardy, it is likely others in the series will be but always check! Of course, the way that they claim hardiness means all new growth in Spring will originate from the base and theeeen it will bloom. I expect the stems from previous years will not make it unless you protect them.

The Lets Dance series are all seedlings of Endless Summer original (Bailmer). Because of this I would treat it exactly the same as ES. Also, it should perform about the same as far as blooming capability.

They are heavily undersold and undermarketed compared to ES and for that they are underrated!

Luis ~ I thought it was the otherway around ~ Starlight hardier than Moonlight for both Winter & Summer. I received Starlight as I love lacecaps but I certainly don't believe in the f/s claim for our Iowa mighty Jul & Aug sun!

Will see after this initial year in p/s exposure how well both do ~ 1 is in a bit more sun exposure & will compare to the ES parents!

I was zone 5b till this year and Lets Dance Starlights do great for me. Heavy bloomer on new wood. Who needs last years buds...lol