What is it? An indicator lens is a raised or flush plastic cap that is fixed onto the top of a panel or stacking indicator. What does it do? An indicator lens helps to protect the bulb contained in the indicator body. Coloured lenses also change the white light emitted from a bulb into a particular colour. Colours are used to alert people to a particular action. A good example would be; RED for stop GREEN for go Applications Lenses are used in any application where an indicator is needed. Typical applications are • Control panels in factories and warehouses • Automotive dashboards • Music studios • Assembly lines • Agricultural equipment • Tools Types Lenses are available in various shapes, profiles and colours. • Flush • Domed • Rectangular, round and square • Clear or coloured