Light Abbreviations and Acronyms
- WPEWall-Plug Efficiency
- WSWalter Schrickel
- WTWhite Track
- WWWep White
- XALXenon Architectural Lighting
- XHLXenon-Halogen Lamp
- YAMYttrium Anuminum Monoclinic
- YCDYocoocandela
- YPFYield Photon Flux
- ZCDZeptocandela
- ZCDZettacandela
- ZPZone Plate
- ZPALZone-Plate-Array Lithography
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