... Power: 54W ± 10% Luminous flux: 1,500 to 1,800lm Color temperatures: 2,700 to 7,000K Voltages: 100 to 240V AC Frequency: 50/60Hz ... : 75 ± 5% Viewing angle: 15, 30, 45 and 60° Working temperatures: -20 to 40°C Lifespan: >30,000h Dimensions: Φ234 x ... optional lens, focus light, also as spot light and distribution lighting to expanse lighto Replacement for traditional halogen down lamp, 80% energy-saving ...