Edwards Signaling 270BCB LED Stacklight is a versatile, multi-mode signaling device that may contain up to five light modules, or four light modules and one sounder module in a single, integrated stack. The lens modules are clear, and are available with red, amber, blue, green, yellow and white LEDs and available in 24V AC, 24V DC and 120V AC. The lenses are made from a self-extinguishing polycarbonate material and are scratch and impact resistant. Optional piezoelectric and magnetodynamic sounder modules complement the visual signals of the Stacklight, offering several audible tones depending on the model chosen. The sound module has been designed so that it is always in the top position of the Stacklight. LED Stacklight features an interlocking system for quick assembly without any tools. It is available in multiple voltage ranges to provide solutions for most industrial applications, while also meeting machine builder and OEM requirements. Black