Mine quit working but the lights still light up blue. What type of fuse does this take? And why are the screws triangle head??

Hello Kevin, thank you for your question. We are so sorry that this happened. This is certainly something that we did not expect to occur. We would love to have the opportunity to work with you directly and help walk you through the troubleshooting steps for this product, so you can enjoy our products to their full potential. At your earliest convenience, please give us a call at 1-800-654-8483.