The New LU7 series Modular System Indicating Light is perfect for OEMs that offer different multi-stack versions in their machine design. NEMA Rated: NEMA Type 4, 4x, 13. Direct Mount LU7 LU7FB Continuous Light Continuous and Flashing Light with Audible Alarms Size: 70mm diameter. No tools required to assemble. Easy wiring with spring loaded terminal block. Available in DC24V or A.