This 60W Dimmable power supply can power up to 32ft of 100 lm/ft LED strips or 24ft of 250 lm/ft LED strips or 16ft of 650 lm/ft LED Strips with no struggle (assuming 60 LEDs per meter). You can use with any regular 110V wall dimmer switch. REMEMBER: Don't ever do more than 32 ft of LEDs in a line without adding more power in between.