supply of led based driver and assistant desk illumination lamp as per clw specn. no. clw/es/3/0042 alt.d. or latest technical specifications : 1)operating voltage 18 to 30 v dc, with nominal voltage of 24 vdc. 2) high and low glow swith has to be provided. 3) the lamp unit shall have inbuilt reverse polarity, over oltage trip, spike and surge protection. 4) mechanically the housing shall be as per clw spec. no. clw/es/3/0042. alt.d or latestled based driver and assistant desk illumination lamp as per clw specn. no. clw/es/3/0042 alt.d. or latest technical specifications : 1)operating voltage 18 to 30 v dc, with nominal voltage of 24 vdc. 2) high and low glow swith has to be provided. 3) the lamp unit shall have inbuilt reverse polarity, over oltage trip, spike and surge protection. 4) mechanically the housing shall be as per clw spec. no. clw/es/3/0042. alt.d or latest,led based driver and assistant desk illumination lamp as per clw specn. no. clw/es/3/ 0042 alt.d. or latest technical specifications : 1)operating voltage 18 to 30 v dc, with nominal voltag e of 24 vdc. 2) high and low glow swith has to be provided. 3) the lamp unit shall have inbuilt revers e polarity, over oltage trip, spike and surge protection. 4) mechanically the housing shall be as per cl w spec. no. clw/es/3/0042. alt.d or latest [ warranty period: 30 months after the date of delivery ] ]