A 3W Square Downlight Body colour: Grey Diffuser:Plain Beam Angle: 38 deg Colour temperature: 3000K/4000K/5000K Lumen Output : 330 lm Dia:50 mm Cutout: 42 mm Height: 27 mm Accessories: Included 2 years warranty.Operational Voltage: 230V Frequency: 50Hz Dimming Options: DALI / TRIAC/ (0-10) CRI: >80 Line & Load Regulation: +5% or -5% THD (Driver) : < 20 % at all line conditions