Xref: utzoo alt.aquaria:5600 rec.aquaria:185 Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!quanta.eng.ohio-state.edu!rcgl1.eng.ohio-state.edu!BRIDGE From: BRIDGE@rcgl1.eng.ohio-state.edu (JOHN BRIDGE) Newsgroups: alt.aquaria,rec.aquaria Subject: Re: Ballast technology news Message-ID: <3929@quanta.eng.ohio-state.edu> Date: 16 Jan 90 15:33:06 GMT References: <1291@island.uu.net> <24781@gryphon.COM> Sender: news@quanta.eng.ohio-state.edu Organization: Ohio State University Lines: 6 As with a lot of TV stuff, high frequency ballasts for flourescent lights is nothing new. 400 hz ballasts have been around for years (like 25 years at least). Other frequencies have been in vogue from time to time. Don't bet on any big breakthrough in this area however. John