--- title: Lighting Terms Glossary 2018 Edition description: We put together this lighting terms glossary to help you define the most commonly used lighting terms. image: https://info.regencysupply.com/hubfs/Landing_Page_Images/2018-Lighting-Glossary-Landing-Page.png --- [![Regency Supply](https://info.regencysupply.com/hubfs/RS-Logo-R-1.png)](https://www.regencysupply.com/) ![2018-Lighting-Glossary-Landing-Page.png](https://info.regencysupply.com/hs-fs/hubfs/Landing_Page_Images/2018-Lighting-Glossary-Landing-Page.png?width=1200&name=2018-Lighting-Glossary-Landing-Page.png "2018-Lighting-Glossary-Landing-Page.png") # 2018 Lighting Terms Glossary ## Definitions to common lighting terms Lighting jargon can be overwhelming and complicated, but we have some common lighting definitions that may help. We've put together this glossary defining the most commonly used terms. Feel free to print it out and keep it handy for future reference.  Some newly added information for 2018 includes: - Lighting as a Service - Program Start Ballasts - LED Conversion/LED Retrofit - R9 Color Rendering Value - And more ### Download now ### Does This Guide Apply to You? Are you responsible for store design, facility maintenance, new construction projects, or energy costs for your company? **Lighting is one significant energy consumer that, regardless of your role in your company, you probably have to deal with at some point.**  It's important to stay on top of the frequently used lighting terms. We make that simple with this alphabetical glossary. *Want more in-depth information on some of the terms in our glossary? Check out these posts on the Lighting Insights Blog:*   - [Shunted vs. non-shunted sockets: How to tell what you need](https://insights.regencylighting.com/shunted-vs.-non-shunted-sockets-how-to-tell-what-you-need) - [What is fluorescent lighting? Pros and cons of linear fluorescents](https://insights.regencylighting.com/what-is-fluorescent-lighting-pros-and-cons-of-linear-fluorescents) - [What is halogen and how is it different than incandescent?](https://insights.regencylighting.com/what-is-halogen-and-how-is-it-different-than-incandescent) - [What is an incandescent light bulb and how does it work?](https://insights.regencylighting.com/what-is-an-incandescent-light-bulb-and-how-does-it-work) - [Light emitting diode: What is LED?](https://insights.regencylighting.com/light-emitting-diode-what-is-led) - [What is a ballast?](https://insights.regencylighting.com/what-is-a-ballast) - [What is a ballast factor and how does it affect my fluorescent tubes?](https://insights.regencylighting.com/what-is-a-ballast-factor-and-how-does-it-affect-my-fluorescent-tubes) - [kW vs. kWh: How much energy is my lighting using?](https://insights.regencylighting.com/kw-vs-kwh-how-much-energy-is-my-lighting-using) HQ 9261 Jordan Avenue Chatsworth, CA 91311 **Phone:** [+1-800-284-2024](tel:+18002842024) **[Send us a message.](http://www.regencysupply.com/contact-us/contact-us/)** **[Find a location.](https://www.regencysupply.com/contact-us/#RS-locations)** Family owned and operated since 1983 [![](https://www.regencysupply.com/wp-content/uploads/rs-main-badge-w.svg)](https://info.regencysupply.com/newname) What's the story with our rebrand? [Learn more.](https://www.regencysupply.com/newname) [![RSS](https://www.regencysupply.com/wp-includes/images/rss.png)](https://insights.regencysupply.com/rss.xml) [Lighting Insights](https://insights.regencysupply.com/) - [4 reasons lighting causes developers' schedules to fall behind on construction projects](https://insights.regencysupply.com/4-reasons-lighting-causes-developers-schedules-to-fall-behind-on-construction-projects) Aug 1, 2022 - [What is DLC v5.1 and how does it impact my lighting purchase?](https://insights.regencysupply.com/what-is-dlc-5.1) Jul 26, 2022 - [Trends in pricing and quality in LED lighting](https://insights.regencysupply.com/trends-in-pricing-and-quality-in-led-lighting) Jul 19, 2022 - [California's light bulb ban](https://insights.regencysupply.com/california-light-bulb-ban) Jul 13, 2022 - [Is there an incandescent light bulb ban?](https://insights.regencysupply.com/was-there-actually-an-incandescent-light-bulb-ban) Jul 11, 2022 - [A state by state look at light bulb bans \[Interactive map\]](https://insights.regencysupply.com/state-light-bulb-bans) Jul 6, 2022 #### Looking for products? [View Product Lines](https://www.regencysupply.com/lighting-solutions-and-services/product-lines/) [Shop our Store](https://shop.regencysupply.com/) © Regency Supply, All Rights Reserved. - [RL Studio](https://rl.studio) - [Shop Lighting](https://shop.regencysupply.com/) - [Branding](https://www.regencysupply.com/branding/) - [Privacy Policy](https://www.regencysupply.com/privacy-policy/) - [Site Map](https://www.regencysupply.com/site-map/) ![](https://secure.deng3rada.com/216972.png)