Dixon1990 Posted November 7, 2008 Report Share Posted November 7, 2008 I have just bought a new type of ballast off trademe, Its 2x40W for 2 36W t8s. It doesnt require Starters, i got it going but there are black bars going down th light tube. Any idea why? Quote Link to comment Share on other sites More sharing options...
TM Posted November 7, 2008 Report Share Posted November 7, 2008 Does it do it after they have warmed up, say 10mins after being on? Quote Link to comment Share on other sites More sharing options...
Dixon1990 Posted November 7, 2008 Author Report Share Posted November 7, 2008 I was too scared to test it :lol: Will try it now Quote Link to comment Share on other sites More sharing options...
Dixon1990 Posted November 7, 2008 Author Report Share Posted November 7, 2008 After Breaking 2 Tubes on the kitchen floor :evil: i managed to set them up and the first tube stopped showing the black bars after about 2 minutes and the 2nd after 15. Quote Link to comment Share on other sites More sharing options...
phoenix44 Posted November 7, 2008 Report Share Posted November 7, 2008 lol that sucks. Quote Link to comment Share on other sites More sharing options...
richms Posted November 7, 2008 Report Share Posted November 7, 2008 Black flickering lines are because you have the horrid but all the rage low mercury content tubes which take forever to get going properly, particularly on their first few start when they have being idle for a long time. On a magnetic ballast the tube just glows at the ends till it gets warm enough, but the higher freq of the electronic ones will sort of excite the whole tube like that. Just like current energy saving lamps suck for warmup times, so do the big tubes now. Quote Link to comment Share on other sites More sharing options...
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