 Type: Flat colour lenses to fit D16 push buttons and pilot lights Options available: Round - 18mm diameter 50-001-11 Blue 50-001-12 Green 50-001-13 Orange 50-001-14 Red 50-001-15 White 50-001-16 Yellow Rectangular - 24mm x 18mm 50-002-11 Blue 50-002-12 Green 50-002-13 Orange 50-002-14 Red 50-002-15 White 50-002-16 Yellow Square - 18mm x 18mm 50-003-11 Blue 50-003-12 Green 50-003-13 Orange 50-003-14 Red 50-003-15 White 50-003-16 Yellow | 
