This Easy Harmony XB2 modular light block is assembled with a green BA9S bulb, metal body/ fixing collar and 1 NC contact block. It is supplied with 220V AC. It is clearly distinguishable visually at a distance thanks to a bright and long lasting BA9s LED illumination. Simply adding an illuminated push button head to this assembly will provide you with a complete ready-to-use push button. It is easily installed with compatible illuminted push button heads. It is easily installed into standard 22mm diameter panel cut-outs and connected to control circuits with classic screw-clamp connections. Its schematic is clearly distinguishable thanks to clear markings, minimizing errors during initial wiring and later maintenance operations. Its wide range of operating temperatures from -25°C to 70°C allows versatility in usage of product. It protects operators from unexpected contact with live circuits thanks to its IP20 protection index.