Hello and thank you for providing us with your feedback. Lighting control devices heating up and feeling warm when touched is normal under certain conditions. Please rest assured that Lutron dimmers meet stringent safety requirements. If you still have questions or concerns, we're available by email at customersatisfaction@lutron.com, or give us a call 1-844-LUTRON1. We're here 24/7, so please call us any time!
Mike S. @ Lutron Support