In operation it is very good, with smooth operation and a nice on/off click.
Easy to pry and install with a screwdriver
Connect it between the power plug and the light, and use the manual knob to freely adjust the brightness,Inline dimmer switch connected by screw terminals, soldering terminals without soldering iron, built-in rotary switch and knob dimming control, equipped with wiring terminals, easy to use.
tips:
1.During disassembly and installation,you need to pull the dimmer switch knob off in order to dismantle it's fine.
2. LED dimmable switch has a small square hole in one side to access the threshold adjustment screw with a tiny screwdriver. Make sure that you put it back together the right way round in order to be able to use this feature.
3.Also, you have to remove the electronics in order to access the terminal screws. So easy .