Lighting question

brynkal · 04/21/2009, 06:14 PM

Why do some fixtures have external ballasts for MH, and some donâ€™t? Are the fixtures that donâ€™t have external ballasts much heavier, so more difficult to lift into place?

Can a fixture be used with a canopy, if there is adequate ventilation, instead of a retrofit kit?

What is the advantage of putting together a lighting â€œensembleâ€ by purchasing/choosing the individual ballasts, bulbs, reflectors, etc as opposed to just purchasing a fixture with all included (Aqualight, Outer Orbit, etc.)?

Thanks for the help!

04/21/2009, 06:14 PM	#1
brynkal Registered Member Join Date: Jan 2004 Location: Sarasota, FL Posts: 549	Lighting question Why do some fixtures have external ballasts for MH, and some donâ€™t? Are the fixtures that donâ€™t have external ballasts much heavier, so more difficult to lift into place? Can a fixture be used with a canopy, if there is adequate ventilation, instead of a retrofit kit? What is the advantage of putting together a lighting â€œensembleâ€ by purchasing/choosing the individual ballasts, bulbs, reflectors, etc as opposed to just purchasing a fixture with all included (Aqualight, Outer Orbit, etc.)? Thanks for the help!