Quality, Value, Experience from Trusted UK Seller The ASTO 4 wall and ceiling light is made from aluminium and is available in white or brushed surface finish. The chosen GU10 halogen or energy-saving lamps are put directly into the designated 230V GU10 socket and can be equipped with a decorative ring supplied with the luminaire. ASTO 3 wall and ceiling light is ready for direct connection to 230V mains supply. This luminaire is suitable for lamps of energy classes: E - A++