This is a ceiling lamp from Eglo which uses one bulb. This pendent lamp should be used indoors and you should not use bulbs with more than 5W.
From ManoMano
Cortaderas Slim Pendant Ceiling Light Black, Gold 3 Step Dimming - Eglo
Illumination.co.uk
Eglo CORTADERAS Pendant Light gold, black, 1-light source
Zoro
Netlighting Cortaderas Slim Pendant Ceiling Light Black, Gold 3 Step Dimming