SPECIAL this particular shade is a bit randomly darker marble pattern than usual so it's reduced a bit . (can't offer a pair)You will get the actual shade that is in the photos. No electrician needed. Just fits straight onto the common or garden ceiling mounted light 29mm socket (or dangling lamp holder) & includes a batten cover for your old ugly plastic lamp holder. Light output is quite good because the shape acts as a reflector to put useful light downward but still enough goes through the glass to give a cozy warm glow. Shade Size approx 30cm, made of real cathedral glass - the colour is in the glass it is not just a coating. This really comes alive at night. The wave pattern is amber glass the rest is cream with streaks through the glass a bit like marble.