Lighting & Controls: Transitioning to the Future Lighting & Controls: Transitioning to the Future Stan Walerczyk, CLEP, HCLP, LC Library of Congress Cataloging-in-Publication Data Walerczyk, Stan Lighting and controls : transitioning to the future / Stan Walerczyk, CLEP, HCLP, LC. pages cm Includes bibliographical references and index. ISBN-10: 0-88173-699-6 (alk. paper) ISBN-13: 978-1-4822-3683-5 (alk. paper) ISBN-10: 0-88173-700-3 (electronic) 1. Lighting. I. Title. TH7703.W29 2014 621.32--dc23 2013041659 Lighting & Controls: Transitioning to the Future / by Stan Walerczyk ©2014 by The Fairmont Press, Inc. All rights reserved. No part of this publica- tion may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Published by The Fairmont Press, Inc. 700 Indian Trail Lilburn, GA 30047 tel: 770-925-9388; fax: 770-381-9865 http://www.fairmontpress.com Distributed by Taylor & Francis Ltd. 6000 Broken Sound Parkway NW, Suite 300 Boca Raton, FL 33487, USA E-mail: [email protected] Distributed by Taylor & Francis Ltd. 23-25 Blades Court Deodar Road London SW15 2NU, UK E-mail: [email protected] Printed in the United States of America 10 9 8 7 6 5 4 3 2 1 ISBN-10: 0-88173-699-6 (The Fairmont Press, Inc.) ISBN-13: 978-1-4822-3683-5 (Taylor & Francis Ltd.) While every effort is made to provide dependable information, the publisher, authors, and editors cannot be held responsible for any errors or omissions. The views expressed herein do not necessarily reflect those of the publisher. Foreword This lighting book should be a very useful hands-on tool for anyone involved with engineering, maintenance, purchasing, specification, retrofits, remodels, and new construction for interior or exterior applications. It shows very practical ways to maintain and update existing lighting systems and how to plan for the future. Key points include: • LED is already cost effective in many applications and will become more prominent. • Maintenance costs can be significantly reduced with fewer and longer life lamps and fewer lamp types. • Very low power density can be achieved cost effectively while still providing very good lighting, such as with .4 watts per square foot in open offices, using ambient and task lights. • The disadvantages of LED T8s, induction, dimming fluores- cent ballasts, and reduced wattage T8s are given. It is a challenge to balance past, existing, and future lighting. Some people want to buy LED products right away because of the WOW factor, even though incumbent technologies may be better. Others want to wait a year or two before doing a lighting retrofit, when LED products will likely have gotten better and less expensive. However, sometimes the lost savings by waiting are never recouped. This book will help people make good decisions. Probably the most important part of the book is human centric lighting, also called human factors in lighting, biophilia, and other names. Human centric lighting (which includes the new and upcoming dimming and warm to cool white, color-changing LED products) may improve alertness, sleep, mood, visual acuity, energy savings, sustainability, and performance. Human centric lighting will probably be the next big step in lighting, perhaps as significant as Edison’s creating the light bulb. v Table of Contents Chapter 1 Ready, Set, Go . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Chapter 2 Yesterday, Today and Tomorrow . . . . . . . . . . . . . . . . . . .5 Chapter 3 Lighting 101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Basic Message . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Chapter 4 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Lamps to be Eliminated or Avoided . . . . . . . . . . . . . .9 Workhorse Lamps . . . . . . . . . . . . . . . . . . . . . . . 11 Lamp Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Relamping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Long Life Lamps . . . . . . . . . . . . . . . . . . . . . . . . 14 Reballasting . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 LED Is Different . . . . . . . . . . . . . . . . . . . . . . . . 18 Chapter 5 Dimming Fluorescent Ballasts . . . . . . . . . . . . . . . . . . . 21 Chapter 6 Spectrally Enhanced Lighting . . . . . . . . . . . . . . . . . . . 23 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Background . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Energy Saving Opportunities . . . . . . . . . . . . . . . . . 24 Even the Best Change Since Sliced Bread . . . . . . . . . . 25 Chapter 7 Delamp Vs. Lamp-For-Lamp Retrofit . . . . . . . . . . . . . . . 29 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 vii Common Reflector Systems . . . . . . . . . . . . . . . . . . 30 Reasons For Lamp-for-Lamp Retrofits . . . . . . . . . . . . 31 Lamp Comparisons . . . . . . . . . . . . . . . . . . . . . . 31 Workhorse Lamps . . . . . . . . . . . . . . . . . . . . . . . 33 Spectrally Enhanced Lighting . . . . . . . . . . . . . . . . . 35 Why Better Rebates for 28W and 25W F32T8s? . . . . . . . 35 No Man’s Land . . . . . . . . . . . . . . . . . . . . . . . . . 36 Delamping & Lamp-for-Lamp Comparisons . . . . . . . . 36 Reflectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Manufacturers . . . . . . . . . . . . . . . . . . . . . . . . . 42 Chapter 8 Induction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Chapter 9 Electronically Ballasted CMH . . . . . . . . . . . . . . . . . . . 45 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 CMH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 Comparison Table . . . . . . . . . . . . . . . . . . . . . . . 47 Chapter 10 Important Stuff To Know About LEDs . . . . . . . . . . . . . . 49 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 DoE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 Lumens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Kelvin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 Lumens Per Watt . . . . . . . . . . . . . . . . . . . . . . . . 50 Color Rendering . . . . . . . . . . . . . . . . . . . . . . . . 51 R9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 Optical Control . . . . . . . . . . . . . . . . . . . . . . . . . 51 Glare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 L70—Life . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 LM79 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Dimming . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Flicker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 Chapter 11 Store Cooler Lights . . . . . . . . . . . . . . . . . . . . . . . . . . 57 viii Chapter 12 Decorative Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Christmas/Decorative Lights . . . . . . . . . . . . . . . . . 59 Chandeliers . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Chapter 13 Omnidirectional Lights . . . . . . . . . . . . . . . . . . . . . . . 61 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 Incandescents . . . . . . . . . . . . . . . . . . . . . . . . . 61 CFL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61 LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62 Chapter 14 Accent Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 MR16 Lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 65 PAR and R Lamps . . . . . . . . . . . . . . . . . . . . . . . 66 Comparison Table . . . . . . . . . . . . . . . . . . . . . . . 67 Chapter 15 Recessed Cans . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Existing 120V Screw-In . . . . . . . . . . . . . . . . . . . . 69 Existing 120V Pin Based CFL . . . . . . . . . . . . . . . . . 70 Existing 277V Pin Based CFL . . . . . . . . . . . . . . . . . 70 LED Kits Issues . . . . . . . . . . . . . . . . . . . . . . . . . 71 New Recessed Cans . . . . . . . . . . . . . . . . . . . . . . 71 Comparison Table . . . . . . . . . . . . . . . . . . . . . . . 71 Chapter 16 LED T8s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 4 Types of LED T8s . . . . . . . . . . . . . . . . . . . . . . . 74 Chapter 17 LED Lightbar Kits, Troffer Kits and Troffers . . . . . . . . . . . 81 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 ix Fluorescent . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91 Spectrally Enhanced Lighting . . . . . . . . . . . . . . . . . 95 Human Centric Lighting . . . . . . . . . . . . . . . . . . . . 95 Financials . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 Soft Savings . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 LED & Fluorescent Retrofit Comparisons . . . . . . . . . . 96 Task Ambient Lighting . . . . . . . . . . . . . . . . . . . . . 99 Funding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 EPAct Tax Deductions . . . . . . . . . . . . . . . . . . . . . 99 Waiting To Retrofit . . . . . . . . . . . . . . . . . . . . . . 100 Designlights Consortium (Dlc) . . . . . . . . . . . . . . . 100 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . 101 Chapter 18 Task Ambient Lighting . . . . . . . . . . . . . . . . . . . . . . 103 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 103 General Discussion . . . . . . . . . . . . . . . . . . . . . . 103 Tunable LED Task Lights . . . . . . . . . . . . . . . . . . 106 The Next Step . . . . . . . . . . . . . . . . . . . . . . . . . 107 Other Applications . . . . . . . . . . . . . . . . . . . . . . 108 Wrap-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110 Chapter 19 Hibays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . .111 Before Really Starting . . . . . . . . . . . . . . . . . . . . . 112 Six Requirements for LED Hibays . . . . . . . . . . . . . . 112 Other Considerations . . . . . . . . . . . . . . . . . . . . . 116 Table Time . . . . . . . . . . . . . . . . . . . . . . . . . . . .119 Award Winners . . . . . . . . . . . . . . . . . . . . . . . . 123 Manufacturers . . . . . . . . . . . . . . . . . . . . . . . . 124 Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . 126 Chapter 20 Garage Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 129 New LED Fixtures . . . . . . . . . . . . . . . . . . . . . . 129 Motion Sensors . . . . . . . . . . . . . . . . . . . . . . . . 131 x