The best price I could find, on a very helpful and informative website. Delivery delayed due to Christmas holidays, but this was clearly stated before purchase. Once holidays were over, my order was immediately processed and despatched, which I received the next day. I'm very impressed with Bimble!
Competitive pricing on most items, really good communication, emails answered within minutes (during office hours). I would buy from them again.
If you find that your panel is draining your battery at night then you need to put one of these on the positive MC4 connector of your panel. Max rating 20A so if you have a larger array you will need to put in Blocking Diodes on each chain to ensure no more than 20A can go from the panel through the Diode (or it will burn out).