Page 88 - Hong Kong Green School Guide

3. Green School Guide - 3.3 Energy Saving
Hong Kong Green School Guide 86
General Lighting & Control Recommendation
Area Served Lighting Control
Classroom &
Office
• T5 tube
• LED tube
• LED panel
• Motion sensor with more
lighting control point
• Daylight sensor
incorporating high frequency
ballast transformer
(dimmable) for T5 shall be
considered for lighting near
window area
Auditorium /
Indoor Sport
Ground
• T5 tube
• CFL
• LED flood light / spot light
• Manual ON/OFF control
Corridor • T5 tube
• CFL
• Daylight sensor
Exit sign light • LED • N/A (as 24/7)
Toilet • T5 tube
• LED tube
• CFL
• Motion sensor
Display Area /
Cabinet
• LED spot light • Timer control
Outdoor Sport
Ground
• LED flood light • Timer control with manual
override
Landscape Area • LED flood light
• Hybrid Lamp
• Solar Bollard Light
• Built-in daylight sensor
General Retrofit Guidance for Existing School Improvement (ES)
Fluorescent Tube CFL Halogen Light
Retrofit Option T8 to T5 CFL to LED bulb
Spot Light
(MR12) /
Flood Light to
LED
Retrofit
complexity
Luminaires and
ballasts might need
replacement*
Simple bulb replacement Simple lamp
replacement
Estimated
Annual Saving
per Lamp
16 kWh
(25-Watt light bulb
for 600 hours)
30 kWh
(25-Watt light bulb for
1,700 hours)
78 kWh
(25-Watt light bulb
for 3,120 hours)
* Retrofit options provided above are not exhaustive. Please consult registered
professional and/or contractor for detailed comparison and installation option.