The dimmable wall sconces allowing you to adjust the brightness freely by your home dimmer switch.
Q1: How to wire this LED wall sconces?
A: Hardwired, directly wired to the wall or ceiling. Input Voltage: 100-120V.
Q2: If the LED bulb can be replaced?
A: Nope, The light source are 2pcs COB LED beads (included), 12w 3000k warm white, it can not be replaced.
Q3: How they can be dimmable?
A: Hardwired the wall sconce with your home dimmer switch, then you can adjust the brightness freely to reach the effect you want by your home dimmer switch.