Unassembled and unopened kits and modules in their sealed original condition may be returned for refund within 15 days. A 20% restocking fee applies to all returns. Shipping fees are not refundable. Special order, final sale or custom orders cannot be returned. Electronic parts and components cannot be returned, unless defective in which case they will be replaced. An RMA number is required for all returns. Products bought through a distributor must be returned to the original distributor according to their returns policy. Goods returned without an RMA number do not qualify for refund.