Knightsbridge: EL6060, CCT Adjustable Troffer Panel, IP20, 595x595mm, 23W/33W, 140lm/W, WhiteThe ELENA range offers superior commercial versatility due to its dual wattage options and triple colour temperature adjustment. High efficacy of up to 140lm W, perfect for energy efficient, professional installations. Easy to specify, install and adjust later by simply changing a setting. Fits standard 600x600 ceiling grids. Robust pressed steel construction and polycarbonate diffuser. Select from 3000K, 4000K, 5700K colour temperatures. 2 selectable