Why are Gavita DE fixtures not remote ballasted?

DE Gavita fixtures seem pretty sweet. I'm wondering why they are not remote ballasted? I can't imagine how one would air cool a DE Gavita the way they are designed. Hydrofarm sells a commercial 1000w DE digital ballast that operates in the traditional fashion so that the lamp can be air cooled in a glass hood and the ballast is remotely mounted. I'm curious why a grower might choose a Gavita over a traditional remotely ballasted unit? Thanks for any help I can get on this one

When you got more than a few lights air-cooled Hood are pointless you got to cool the room

jonnynobody said:

DE Gavita fixtures seem pretty sweet. I'm wondering why they are not remote ballasted?

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Likely for interference reasons. A long lead from ballast to light acts like an antenna for RFI. Using a shielded connection from ballast to lamp solves the RFI issue.

To air cool a DE light you need an AC DE hood, the air flows behind the reflector, not over the lamp directly. Cooling DE's directly is a big no no as it drops the arc temperature (the DE lamp is shielded with nitrogen gas instead of a vacuum like with SE and the nitrogen conducts heat where a vacuum doesn't).

In a large production greenhouse remote ballasts are a pain in the arse, it's easier to just hang the unit as one.

As well as all the other given reasons.