Ben from Sydney, Aust writes
Outside diameter of the ring, and diameter of the tube? The tube I have is approx. 120 mm OD (4.7") and tube 13 mm (1/2") dia.
The diameter on the Synergetic Bulb - 22 watt Cicline (TGX22) is 8" and the tube is about 1 1/2 " per the manufacturer. Please let us know if we can assist you any further.
Answer last updated on: 11/02/2016