Instruction manual

60 
5.6.5 Dimensions 
Harmonised and identical dimensions for all 1-lamp and 2-lamp QTi is 
another product feature increasing the flexibility in luminaire design and 
production. 
5.7 FAQ 
•  Can FH
®
…HE and FQ
®
…HO- fluorescent lamps be operated 
together with a 2-lamp QTi? 
No, because in this case both fluorescent lamps are not operated at 
their rated data. The ECG will not be damaged, however a 
significant difference in the luminous flux of both lamps can be 
seen. 
•  Will the lamp detection be repeated with every restart of the ECG? 
Yes, a the clear lamp detection with every restart is guaranteed. 
The fluorescent lamps start within 1 second. 
•  Can QTi also be operated in emergency lighting installation at DC 
voltage? 
Yes, QTi are suitable for the operation with DC voltage. 
•  Does the entire approval have to be done for all lamp wattages? 
No, according to an international testing institute the entire approval 
must only be carried out for the system with the highest wattage. All 
other T5/
∅ 16 mm-fluorescent lamp combinations are subject to a 
reduced testing procedure. 
However, we recommend to discuss these details with the 
according national approval authorities. 
. 
Dimensions of all 1-lamp 
versions 
(l x b x h) 360 x 30 x 21 mm
Dimensions of all 2-lamp 
versions 
(l x b x h) 423 x 30 x 21 mm










