South Central Railway

South Central Railway has published Supply Of supply of 15w led recess round type , supply of 15w led recess round type downlighter conforming to is 10322 (part 5/section 2) having 1) system wattage ? 15 watts, 2) luminaire system efficacy (lumen / watt)>/=100, 3) ip20, 4) warranty for free replacement - minimum 3 years, 5) operating volt age range- 140 to 280 volts ac at 50hz, 6) rated voltage ? 230 volt, 50 hz, 7) ac power factor at full load >/= 0.9, 8) driver efficiency >/ =85% 9) total harmonic distortion </= 10, 10) led chip efficacy >/=130 lm/watt, 11) colour temperature (k) 6500k, 12) working life for led ?minimum 50000 burning hours 13) colour rendering index (cri) >/=80, 14) led beam angle >/=120, 15) operating temperature -10 to 50 deg c, 16) protected against surges and transients >/= 2.5 kv, 17)luminaire casing - pressure die casted aluminium/crca/extruded aluminium . [ warranty period: 30 months after the date of delivery ] ]. Last date of submission for this tender is 2026-03-14. This is a Led Light tender in Lallaguda, Telangana