we have a standard street sign / marquee that uses traditional ballast with 8 ft. HO flouro bulbs. have been in business 10 years and every year we have to pay for tech to come out and change ballast and bulbs. this has mostly been due to ballast failure and not bulb. over the past year i left the sign on 24 hours a day hoping to avoid ballast failure due to off/on cycles. it proved to be no better as i am now facing same problem. our sign is 15 feet high and very close to elec lines, so doing work myself is not really an option. sign company charges 300-400 dollars for this repair. is there any thing i can do convert this sign over to more reliable and cheaper lighting solution, particular something that does not rely upon ballast start up. no trying to re invent the wheel, just squeeze pennies with this economy. thanks