How do we rate off grid solar products?

We give off grid solar lighting systems a grade from A to E.

An Overall Grade A means that a device is relatively easy to repair, is potentially recyclable, has very good after-sales service and access to spares.

Our grades are based on a complete disassembly and reassembly of each product, as well as information provided to customers with their purchase.

We score each product for repairability, recyclability, service and spares.

Points are awarded for upgradability, use of non-proprietary tools for servicing, and component modularity.

We take away points based on the difficulty of replacing key components (like batteries), the difficulty of opening the device, the types of adhesives or fasteners found inside, and the labelling of potentially recyclable parts (like plastics).