supply of supply & installation of battery-operated high performance 4000 lumens. , supply & installation of battery-operated high performance 4000 lumens output, true view le d lightingsyste light weight and unbreakable as per following specification (1) battery capacity 12- 18v/5.0 ah. (2) battery type: bis certified, electronic controlled lithium-ion high output battery pack (3) three mod e output of 4000/2000/1200 lumens with maximum run time with battery of 3 hr/6 hr/12 hrrespectively. (4) ac/dc versatility works on both ac/dc supply. (5) 02 nos. of batteries to be supplied. (6) ip ratingcertificati on of dust and water resistant (lp-67 or higher) (7) rotable light upto 120-200 degreesand designed to prov ide multiple mounting options and illumination possibilities from any angle. (8) weight of machine with batt eryup to 3.5 kg. (9) impact resistance to withstand up to 2-3 m accidental drop (10) low battery indicator, l ight flashes when battery pack is low on charge(11)charging status indicator. (12) 01 no. charger (0.85 kg max) (warranty period: 12 months from the date of supply). [ warranty period: 12 months after the date of delivery ] ]