A long shot, I admit...
I have a Juwel Rekord 800, standard, off-the-shelf, with two 18W T8 tubes (one 'Day-Lite' and one 'Warm-Lite). I would love to know the PAR figures this gives, but alas I don't have access to a PAR meter.
Is there anyone out there with access to both who would be kind enough to do some measurements for me? Please?