Adverse effect to prolonged dark period at end of flowering?

I just realized today my bulb blew, last time I recall seeing it on was Monday so it could've happened at any point after that. Might have been today, might have been Tuesday. I have about 1 week left of flowering. I replaced the 600w HPS with an extra 400w HPS I had laying around until my new one comes in. I was wondering if there will be any problems if the light has been off for about 3 days? I've read that people give extended dark periods at the end of flowering so I'm not too worried, but they usually don't throw the lights back on for a week after that.

Thanks.

I had a long power outage last spring due to an ice storm and had my flowering round at around 6 weeks into 12/12, sat in the dark for 3 days with no issues. I just kept them on the same schedule once the power came back up and they really didn't even flinch. Don't think you have much to worry about.

Your all good