tender for providing of 8.9 led batten light (system lumen efficacy ≥105 120 lm/watt). supplying, installation, testing & commissioning of led surface mounted batten light of following body material and construction as per is : 10322 with driver (replaceable) as per the requirement with driver efficiency 85%, operating voltage ac 140- 270 volt, frequency 50/60 hz, operating temp range -5 °c to 40 °c, internal surge protection of 2.5 kv with short & open circuit protection, thd 10%, p. f.≥0.95, ip20, cri 80, flicker free, (flicker should be below 5 %), life time (led, driver & electrical circuitry), of minimum 50000 burning hours with 70% of initial lumen maintained till life ends, cct 3000°k / 4000°k / 5700°k /6500°k (as per ansi bin), sdcm(standard deviation colour matching) 3, maximum power consumption should not more than the specified rating and fixture shall be of relevant bis standard. manufactures word mark/ name engraved/ embossing/ screen printing on housing. complete in all respect i/c