Spare tube 21W 1677lm 80lm/W 6400K G5 Energy

Replacement bulb for: 1 17726 0 Power: 21 W Luminous flux: 1677 lm Lamp efficacy: 80 lm/W Colour temperature: 6400 K Colour rendering index: 83 Fittings: G5 Mercury content: 2 mg Rated lamp Lumen Maintenance Factor: 96.6 % after 2,000 h 93.2 % after 4,000 h 92.2 % after 6,000 h 91.6% after 8,000 h 90.7 % after 12,000 h 90.2 % after 16,000 h 89.7 % after 20,000 h Rated lamp Survival Factor: 100 % after 2,000 h 100 % after 4,000 h 100 % after 6,000 h 100 % after 8,000 h 95 % after 12,000 h 90 % after 16,000 h 85 % after 20,000 h Ambient temperature at which the lamp was designed to maximise its luminous flux: 25 °C Energy efficiency class: A E c (kWh/1000h): 23,10