The Solstice 200 4100lm 940 DALI ST Surface Mounted is a high efficient DALI dimmable downlight luminaire, Colour rendering index Ra>90, Colour temperature: 4000K Neutral White, Class II, Overall dimensions: dia 196mm, height 196mm. The product includes Self Test ST converter LED PRO 202 MH/LiFePO4 50V (89800627)