Have two model 4 Solar dimmers for sale. will hook up to Icecap ballasts to dim the output of the lamps. One is version 4.0 the other is version 3.1.
http://www.premiumaquatics.com/Merch...Category_Code=
http://www.bluelineaquatics.com/prod...mmer/1000.html
Selling them for $175 each. Go for ~$300US new
Great for VHO lit tanks. Works with both ICecap 430 and 660 ballasts.