Luminaires with integrated lighting should be declared in the space for “luminaries”. If you are selling a light fitting with a replaceable light source included, the light fitting (or luminaire) should be declared in the space for “luminaries” and the light source in the space for “lamps”. If light bulbs are sold in packets of three, the number should be declared as “3” and the weight should be that of the total packet of three light bulbs.