How is the luminous efficacy of a lighting system measured? What is the reference unit when referring to LED lighting: Watt, Lumen/Watt, or Lux/Watt? 23 June 2016 Lighting techniques
What flux value to choose for royal blue? For any lighting technologist, there are two units of measurement to describe a quantity of light: watts and lumens. Which do you choose for royal blue? 23 November 2015 Lighting techniques