E27 screw base (bulbs not included), Power: 40W/60W Edison Bulbs or 4W/6W/8W LED bulbs Size: 16.6 cm (Diameter) x 21 cm (Height), 12 cm in wall mount diameter, bar length:17cm, adjustable knuckle joint, 90 degrees adjustable,straightened (180 degree) as a ceiling light This light fitting is suitable for dimmable switch but bulbs used must also be dimmable This wall light comes in high quality metal fittings, the light is individually switched and would be ideal for use in kitchen, dining room, restaurant, coffee shop, bar, club etc