Thanks Roger, sorry you had trouble getting through on the phone, it's our busiest time of year at present and we sometimes get a bit behind.. Your best bet for speedy response is to drop us an email, we aim to get back to you within 24hrs and most of the time much sooner than that. We also have a chat system that's available most of the time Monday - Friday with a super friendly Suzie who can give you instant answers to your queries.
Thanks for the feedback. If you lights are in a poor location or you have been very unlucky with many overcast days in a row the lights should work up to 10 hours. Have you tried switching to power saving mode? This mode is design to more than double the run time, perfect for winter conditions.