The 004-1930-29-201 is a Series 004 T-1 3/4 incandescent lamp designed for indicator and illumination applications. It features a microgat flange configuration with a 15/32" mounting hole size, solder terminal type, and black nickel metal finish with brass hardware for durability and corrosion resistance. The lamp is engineered for reliable performance in panel-mounted applications where compact size and standard T-1 3/4 form factor are required. This product is commonly used in control panels, instrumentation displays, and industrial equipment where incandescent indication is preferred for its warm light output and proven reliability.