... lm, 8,000 lm, 12,000 lm· Flicker-free instant start· High luminous efficacy: > 80 lm/W· Very good ... luminous flux loss (30 % after 60,0000 h)· Guaranteed start-up at low temperatures as low as –40 °C, depending on ... DC) operation possible· Lamp and ECG can be separated by up to 20 m, depending on ECG· Direct current (DC) ... operation possible · Lamp and ECG can be separated by up to 20 m, depending on ECG