Ballast Wiring Advice Needed

Hi all, I need some advice, im replacing the ballast in my Jewel light bar and my new ballast has 7 terminals where as my old one has 3 can anyone advise?

Ive atteched a photo of new and old including wiring diagram.any advice appreciated Dan

check out this sticky........ http/www.fishforums.net/index.php?/topic/265546-fixing-juwel-light-bar/