This pendant lamp from Kichler is fitted with an E27 socket. It should be used indoors and has an E energy efficiency class.
From Debenhams
Brinley 1 Light Ceiling Mini Pendant Brushed Nickel E27 - Grey - One Size
Home Lighting Centre
Brinley Mini Ceiling Pendant Light In Brushed Nickel Finish KL-BRINLEY-MP-NI