mattyc
Member
My Hagen T5HO light unit just arrived, do you know if a normal (not hagen) bulb will fit. hagen say it is a 550mm 22'' bulb. and http://www.lampspecs.co.uk/Light-Bulbs-Tubes/860-and-865-Daylight_11/T5-24-Watt-865-Philips is a 549mm tube. what do you think?