Energy Guide

Master Contract: 229828
Report: 70024182
Project: 70024182
Client: Guangde Ledup Enterprise, Inc
Attachment 1
No. 10, Ke Yan Road, Confidential Telephone: [phone]
Guangzhou Science Park, Fax: [phone]
Guangzhou, 510663, China
www.csagroup.org Page 14 of 15
Photometric Testing Information
The sample was evaluated for photometric and electrical characteristics using an integrating sphere, each
located in purpose-built, temperature and humidity-controlled, draft free environments.
The integrating sphere is a 2-meter diameter sphere manufactured by EVERFINE (Model# 2.0m R98-A-V1)
which exhibits a “4π geometry” configuration according to IES LM-79-08 and is applicable for all types of
LED products (directional and non-directional light projections). Its spectroradiometer is an array-type detector
manufactured and calibrated by EVERFINE (Model# HAAS-2000).
The integrating sphere uses self-absorption correction to eliminate errors due to mismatches between the
standard reference lamp and the test samples being measured. The auxiliary lamp used to perform this task is a
halogen type lamp powered by a calibrated Lamp Power Supply manufactured by Everfine (model WY12010).
Ambient temperature (for photometric analysis) is measured using a “J-Type” thermocouple located inside the
integrating sphere at the same height as the sample under test and not more than 1 meter in horizontal distance
away from the sample. The thermocouple is located behind the baffle of the photo detector in order to eliminate
any direct optical radiation from the sample under test.
Luminaire Stabilization.
The sample was placed inside the integrating sphere and powered by a regulated and conditioned 120.0 Volt, 60
Hertz alternating current supply. The light output and electrical power measurements contained in this report are
the numeric averages of the three readings upon which stabilization is verified. The stabilization times shown
on the Notes pages of this report denote the time of the 1
st
measurement (of the 3 consecutive readings) since
this is the minimum time that the sample is assumed to have taken to reach stabilization.
The integrating sphere is calibrated using a quartzline halogen lamp with the following specifications:
Manufacturer: Everfine
Part Number: D204
Bulb Number: JV-60267-004
Voltage= 22.50Volts
Calibration Current= 3.917 Amperes
Luminous Flux = 1310 Lumens
Calibration Date: 2014-10-20 (ilac-MRA traceable)
A Yokogawa WT210 Power Analyzer was used to measure all electrical characteristics of the sample.
CSA Group (Guangzhou) is an accredited Test Laboratory (TL-464) to IESNA LM79-08 by
IAS (International Accreditation Service)