individual efficacy of minimum 140 Lumens/watt arranged modularly to provide the
required lighting output. All lumen figures shall be Deliver (Hot) Lumens.
The LEDs shall be manufactured in accordance with ANSI/NEMA/ANSLG C78.377-
2011 or similar approved International Standard and shall be from one of the following
approved manufacturers:
1. M/s. Cree, USA
2. M/s. Lumileds, USA
3. M/s. Osram, Germany
4. M/s. Nichia, Tokyo
B. The white LED binning structure must comply in all respects with the requirements of
the NEMA Publication No. SSL 3-2010 "High-Power White LED Binning for General
Illumination” as a minimum or similar approved international standard and the LEDs
shall only be from MacAdam Ellipse Step 1:5 Bins.
C. The LEDs colour temperature shall be 2200K with a colour rendering index of more
than 70.
D. TM-21 reported life time should be run for 10,000 hrs confirming soldering point
temperature (Tsp) used in (coming from Thermal Management Test report at elevated
ambient temperature 50ºC) and selected driver current (Maximum 500mA).
E. All LED luminaires shall be supplied complete with LEDs controller as per the
manufacturer recommendations.
F. All cables shall be secured within the luminary body to prevent loose lengths from
touching hot surfaces or becoming trapped beneath cover plates. Cable clips or cleats
shall be captive and if secured by adhesive, shall not loosen with age.
G. Wiring within the fixture shall be 125ºC, 500V and to be as per manufacturer
recommendation.
H. The luminaire shall be fully shielded that emit no light upward.
I. Extreme high power LED, Multi-die LED, COB & Medium power LED are not
accepted.
2.3. LED Drivers Technical Requirements
General:
A. Driver shall be IEC61347-1,-2,-13 and IEC62384 test reported or equivalent approved
international standard.
B. Drivers shall be Restriction of Hazardous Substance (ROHS) Compliant.
C. The Driver and driver output current shall be fully tested and compatible with the exact
LED chips /engine of the luminaire.
D. The maximum driver current allowed is 500mA, 350mA is preferred.
STREET LIGHTING 265600 - 6
ISSUED FOR TENDER – REV 00
Mar. 2024
