I’m about to replace some HPS lights with LED and I never do anything without a backup plan. I have backups for everything I use now, lights, fans, water and air pumps. I want zero down time.
HPS is quite simple, have spare bulbs and ballasts and you are set in case of failure. I’ve never had a old magnetic ballast go out but I’ve had a couple digital ballasts just die suddenly over the years, had spares so no biggie.
What about LED lights like the HLG 550 v2?, I assume points of failure can be the driver (easy enough, buy a spare driver), how about the quantum boards, what are the chances of one of those just stopping working and if so, can they be easily replaced? Good idea to have a spare board or 2? Anything else that can go wrong with it?