NVC NAU70SON-EI Floodlight 70W SON.  Online special at only £27.50.  

Black. The diffuser is made of polycarbonate, vandal-proof with high transparence.

Polycarbonate vandal resistant body. High purity aluminum hammer-tone reflector for high reflection; Silicon sealed to ensure IP65 rating; weather-proof.

Mounted to the wall using the swivel bracket to adjust direction of light.

Built-in 70w high pressure sodium son control gear. Low running costs!