T-Power DC adapter Compatible with Sirius Starmate ST3 ST4 ST5 3,4,5, Receiver Radio Replacement Auto Mobile Car Charger Boat switching power supply cord plug spare T-Power High Quality Premium Design with Japanese engineering featuring unique upgrades. Cool Blue illuminated Smart LED light. Engineered to ensure your device receives the proper voltage. Input: DC 11V-24V Output: DC 5V 2A Internal over-tempurature shutdown. Rugged case with moisture-seal protection. 1-year limited warranty.