supply of led lamp 7 wattled lamp 7 watt,led lamp 7 watt, 1. watt-7w+10% 2. input voltage-220v-240v, 50 hz, 3. operating vo ltage-100v-300v ac 4. input frequency-45-55hz 5. power factor->0.9 6. driver efficiency->85% 7. lu minous flux-6001m-7001m, 8. luminous efficiency-751m/w-851m/w 9. color temperature-cool white ( 4000k-7000 k) 10. cri (color rendering index)->80 11. optics used-glass (milky) 12. material for led engine-metal core pcb 13. type of holder/cab-b22/e27 14. material for housing-aluminium die cast 15 . temperature rise-25 degree c-30 degree c @ 25degree c ambient as per drg.no. as per description as per specn. as per description [ warranty period: 30 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitt ed: max 8 lacs ] ]