supply of adjustable spot light for driver and assistant driver desk illumination (lamp should be led based and operating voltage 110 volt dc)adjustable spot light for driver and assistant driver desk illumination (lamp should be led based and operating voltage 110 volt dc),adjustable spot light for driver and assistant driver desk illumination (lamp should be led ba sed and operating voltage 110 volt dc) for locos. entire assembly should confirm to clw spec. no. clw/es /3/0042/d except lamp, which should be led based with operating voltage 110 volt dc, quality of led sho uld be tested as per clw spec. no. clw/es/3/0654, para (2). technical data, where voltage to be considere d as 110 v instead of indicated 24v. note: 1) this item is reserved for clw approved sources only as per vendors directory id: 2100166. 2) potentio meter to be provided for smooth adjustme nt of illuminination in place of dim/ bright switch. 3) the lux value at one meter distance should b e in fully bright mode minimum 110 lux, and in fully dim condition maximum 10 lux. [ warranty period: 30 months after the date of delivery ] ] => limited