This is a lamp from Eglo which uses one bulb. This model is made for indoor use and the bulbs should be no stronger than 40W.
Mediouna Cylindrical Pendant Ceiling Light Beige - Eglo
Robert Dyas
Eglo Vintage Style Single Pendant In Seagrass And Gold Glass
Illumination.co.uk
Eglo MEDIOUNA Pendant Light cream, 1-light source