The Solar Centre unfortunately sells dreadful products which are not environmentally friendly at all as they fail in a very short period of time. I purchased a set of mini London solar powered lights but they failed in around 12 - 18 months. The support team lead by Parys and including Aminah only offer very poor service. I was told by them in a support email that "our products are expected to last for 2 years but this varies depending on the location, installation and the customer so the warranty is set to one year." They would not offer me a replacement set of lights or tops as the warranty period of 1 year was exceeded. This is clearly very poor from company that doesn't care about product quality or customer service. I would advise buying normal LED lights with replaceable batteries as they will be much better for the environment in the long run.