Hello Dale, thank you for your feedback. We are sorry to hear about the issues you encountered with your Maestro Dual Dimmer. The MA-L3L3 you had selected is rated for incandescent or halogen light bulbs only and cannot control LED lighting. Because there is no industry standard for manufacturing LEDs, not all LEDs are designed the same and thus are subject to different performance with different dimmers, and this behavior will only be made worse when using with a control not rated for LED lighting.
We'd like to hear more about your application to see if we can find a solution for you. Please reach out to our Customer Satisfaction team at customersatisfaction@lutron.com, or call us 1-844-LUTRON1. We're here 24/7, so please call us any time!