Thanks for your comments, if you get in touch with customer services we'll make sure we look after you for the inconvenience caused.
I bought 3 solar curve lights as an experiment. We recently purchased this property and it has three exits on the east, south and west sides with no external lights, each area gets direct sun light for part of the day.
I do not know how much exposure each unit will get by mid winter, ie why it is a test, all lights work well at this time [the end of August] we will know once we get well past mid winter if there is enough winter light to maintain the units so they can still function, I will write a review online february/march to report my findings.
I understand you recommend a south facing elevation, but not many people will have the ideal place, ie why I thought it worth a try on the east and west walls. Hopefully our feedback later will let you and prospective future purchasers know how they perform under our less than ideal conditions once we have been through a winter.
As current feedback on the solar curve, its light output is very good, as a comment maybe one with a larger collector would be an idea for areas with a less than ideal exposure position.
Second comment for easier level adjustment, maybe oblong rather than round mounting holes, as there are on all surface mounting electrical boxes would be a good idea.
All in all the solar curve is a beautifully designed and well made product. All the best Martin.
PS our daughter and son-in-law were very impressed with the lights when they visited us recently, I have given them your web address.