Hi all I'll begin with a little background to my situation. A client wants to colour the LED floodlights which illuminate the school mansion buildings at night. We have previously done this in green for mitochondria awareness (or something...) week a while ago. We are now trying to do the same in 'NHS' coloured blue as a sign of support for the NHS in this difficult period. When we did it with green, we just used Primary Green (LEE 139) filter held in some boxes which sat over the top of the floodlights. My question is, we have tried some existing blue filter we had in the theatre but the power of the floodlights is just washing the colour out. (I don't know what LEE filter it was but looks like 'Daylight Blue 165 or even lighter) Does anyone recommend a particular LEE filter which would be suitable for this. Also should I look at some colour correction filter as well to 'warm up' the cool white LED floods? The LED floods are around 200w, set pointing up at the building (built from Bath Stone). The floodlights are between 5 and 20m from the building. Kind Regards Max