Ok ..after going through all my connections..turns out there must have been a loose one.So I got my white 10K to fire up on either pair of endcaps,but my actinic blue still wont give any signs of life..got the day off tomorrow so I'll be making a road trip to the boys in Marinescape.I cant believe what just 1 VHO bulb makes..can hardly wait to have both of them up and going