I broke down and bought another 100 watt MVB . after burning 12 hours its putting out around 70 MP of UVB at 12'' . So i stilll have one 10.0 48 '' zoo-med repisun and a 48'' 5000k full spectrum tube next to the powersun . I never did hear anything more about my megaray replcement bulb , after i sent them the info they asked for .:huh: