Dimming T5 dimmable ballasts

[mmbuna]

Hi there,

I've seen the dimmable T5 ballasts around, however I do not have a concept of how can I control (automatically, not manualy) the pace of the lamps becoming brighter till 100% in the morning and then how to fade them as low as possible before they totaly shut-off.

Has anyone utilized a (DIY or other) circuit to drive the dimmable ballast to a satisfactory dawn-dusk effect?

[mmbuna]

^^^

[douggiestyle]

bluelineaquatics.com

[mmbuna]

Thanks for the link Doug.
It seems however like they (both their models 750 & 1000) are only compatible with IceCap ballasts!? I have Osram and Phillips dimmable ballasts for my T5s, so, any other ideas?