Cosmos Solar Panels Sun City offers a number of very thin, light and economical solar panels and the installation services. We strive to deliver superior installations at the best value. Call now on (623) 295-2493 to get a free quote. Experts at Cosmos Solar Panels Sun City are on-call 24 hours a day, 7 days a week and we will be happy to come and complete any solar repair or install that needs to be done, at a time that is convenient to our customer.