Arrived on job site; customer stated that the light switch controlling the back patio porch light was not working properly. Upon inspection, determined it was a smart switch that was continuously blinking and had failed. Customer confirmed that no other devices or circuits in the home were affected and that the switch was the only issue. Replaced the faulty switch with a customer-supplied device. Verified proper operation after installation. Provided the customer with options for adding surge protection. Customer is 100% happy and satisfied with today’s visit.