supply and installation of 24 watt led solar street lights at different locations under ghoom jorebonglow constituency ,phase -ii ,darjeeling,gta- 1 supplying of 18/24 watt all in one solar led street light lumlnalres having polycrystalline solar cell with12v,100 w solar panelmodule capacity lncludlng supply of hot dip galvanised octagonalpole 7.0 mtr.long• detailed technica lspecification givenbelow:- l) system lumen output should not be less than3000 lumens, system efficiency should notbe less than175lumens/watt, crl-70 (+/-5%), cct-5700k(+/- 5%), uv stabilized polycarbonate covershould be used for better llght distribution, lithium-ferrous phosphate battery should be used with battery capacity>170wh, integratedmppt charger withdriver,/umlnaire should have in-bulitpir sensor, fixture tllt angle should be 0-15 degree adjustable, input voltage -12v dc to14v dc, led burning hours should be>50000 hrs. @ l70 lumlnalres should have charging & discharging ledindicator and alvminium pdc housing shallbeprovided with lumlnalre. ,1 warranty-3yearswarranty agains tmanufacturing defectsfromthe dateof commissioning.make-havells/tatabp/osram/ phillps/ soiarlze 2) hot dipgalvanisedoctagonal pole 7.0mtr.long,bottom-135 mm,top•70 mm&thickness 3mm, base plate225x225x16mm& pcd•225mmand foundation boltsm20x700mmx4nos.j-type andinbuiltj-boxwithsingle arm bracket.make-j.k.poles &pipesco./ valmont/ skipper. 2 erection of single steel tubular pole of length as given below with/without sole plate &cap etc.in cc foundation(proportion anddimension indicated below), having600x600x150 mm thick cc(4:2:1)baseblock below soleplate/pole with hardjhamametalincludingcc (6:3:1)muffing0.30mts. dla andll.30mts.abcve groundlevelincluding 3 mm thick neatcemented finishandglearth bolt after makingdrilled holesetc.onpole & carriageofpole upto1.6kmfrom storetowork-siteincludingfillinguptheexcavatedearthpitwithshiftedsoilandrammingproperly 3 a)upto9mtr.s.t.pole(06.x0.6xl.70)mts. 4 extra on items 1& 2 above, for providing cc (6:3:1)base block (around the pole) dimension 0.60x0.60x0.76 mt. above ground level, neatly cemented finish (3 mm thick), at the base pole (in lieu of cc muffing) suitable for alkathene/ polythene pipe entry as directed for streetlight wiring, incl. s & f 25cmx25cmx10cm gi loopbox, 16swg & incl. drilled hole in pole suitableforalkathene/polythenepipeentry, forstreetlightwiring, without loopbox 5 earthing with 50 mm dia gi pipe 3.64 mm thick x 3.04 mts. long and 1 x 4 swg gi (hot dip) wire (4 mts. long), 13 mm dia x 80 mm long gi bolts, double nuts, double washers incl. s & f 15 mm dia gi pipe protection (1 mts. long) to be filled with bitumen partly under the ground level and partly above ground level driven to an average depth of 3.65 mts. below the ground level as below:by tata-medium gi pipe 6 fixing only floodlight fitting withsuitable tieclampsandmsplate for mounting onpole/towerorsimilarstructure 7 add 1% labour cess