This is manual switch dimmer with power cord. We can adjust light intensity smoothly And put on/off by rotating knob simply. Load: Max 300 watt for 220 volt Max 150 watt for 110 volt ( it is possible to adjust supply voltage by customer request. ) Plastic case (flame resistant) Size:90mm x 40mm x 18mm Color: Std color- black, grey, ivory, white Other color-need to be discussed based on Ordering q'ty & cost, etc