This is a lamp from Searchlight which has an IP20 rating. It should be used indoors and as for the energy efficiency class, it's A.
From Wayfair
Rutland 1 - Light Cone Pendant - yellow (33.0 H x 36.0 W x 36.0 D cm)
The Range
Cameroon 1 Light Dome Ceiling Pendant Antique Brass, Marble Glass, E27 - Antique Brass - Yellow