Lighting Research Center

Advancing the effective use of light for society and the environment

Rensselaer Home Page
Newsroom Event Calendar LRC in the News Sign up for LRC News
Light & Human Health Illumination for Plant Health Transportation & Safety LEDs & 3D Printing Energy & the Environment
Graduate Education Outreach Education Admissions
Lighting for Healthy Living Design Demonstrations
Our Mission and Role Staff Directory Directions Contact Info
 
Power Reducers
<< Previous page

Title:  Power Reducers
Date:  1992
Author(s):  James Barrett
Number of Pages:  12
Download view-only PDF
Download printable PDF

Abstract

Power reducers include a diverse group of products that reduce the active power demand of a fluorescent lighting system. This issue of Specifier Reports focuses on those that reduce the power demand of a fluorescent lighting system by a fixed amount. In this type of power reducer, a reactive current-limiting element is connected in series with the lamp circuit. This electrical element reduces the lamp current, which reduces lamp power. Power reducers also reduce a lamp's light output, although not quite as much as they reduce power demand. Power reducers should only be used in retrofit situations where illuminance is excessive for the visual task being performed. Inappropriate applications include new installations and retrofit situations where existing illuminances are satisfactory or where ballasts or luminaires are being replaced.

 

Contact Us | Privacy | © 1995-2021 Rensselaer Polytechnic Institute, Troy, NY 12180 USA - All rights reserved