supply of led based driver and assistant driver desk illumination l . technical specification:- 1) operating voltage 18 to 30v dc , with nominal voltage of 24v dc. 2) high and low glow switch has to be provided. 3)the l unit shall have in built reverse polarity, over voltage trip, spike & surge protection. 4) mechanically the housing shall be as per clw specification no. clw/es/3/0042 alt d or latest. , led based driver and assistant driver desk illumination lamp. technical specification:- 1) o perating voltage 18 to 30v dc , with nominal voltage of 24v dc. 2) high and low glow switch has to be provided. 3)the lamp unit shall have in built reverse polarity, over voltage trip, spike & surge protection. 4) mechanically the housing shall be as per clw specification no. clw/es/3/0042 alt d or latest. [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted : max 8 lacs ] ]