Compatible lights: 1 set 1 way dimmer switch. No neutral wire required. Supports 3-300W dimmable LED lights or 3-700W incandescent bulbs, AC 110-240V. The LED adapter included in the product effectively prevents 99.9% of LED flickering issues when dimming. 20% - 90% dimming: Touch and hold the circled area to dim. Release and hold again to dim. If you touch the circle area and release quickly, the work is on or off. The brightness memory function will remember and return to the last light setting when the power goes out. Touch Control and LED Backlight: Tempered glass touch screen design, 40ms high-speed touch sensing response. The strong/weak blue indicator light shows on/off clearly, easy to spot in the dark, but has zero impact on sleep. Low power consumption and long service life. Safety protection: flame retardant material, aluminum shell for heat dissipation. The 4mm thick tempered glass panel is waterproof and safer than buttons, preventing electric shock even when touched with wet hands. No discoloration, easy to clean, no scratches. Note: Due to the nature of our switches, power cannot be turned on until the glass panel is installed. Otherwise the switch will not work properly. The manual will guide you through the wiring process. CE/RoHS certified. Standard size 86*86 cm, screw-free snap-on wall panel.