Also found in: Dictionary, Thesaurus, Medical, Acronyms.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Lm/W(LuMens per Watt) A measurement of luminous efficacy, which is the light output in lumens using one watt of electricity. Following is an approximate range of lumens per watt for popular light bulb technologies. The higher the number, the less costly to run the lights. See lumen, incandescent bulb, halogen bulb, fluorescent bulb and LED bulb.
Bulb Lumens Per 1 WattType (Lm/W) Incandescent 10-18 Halogen 9-25 (CFL) Compact Fluorescent 42-75 Fluorescent 35-125 LED 40-200
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.