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Hello Guys, I know this has been posted before but I never found a conclusion to it. I've always learnt that you can't restrike/hot-strike HMI bulbs meaning to turn them off and straight back on without blowing the bulb full-stop. Every shoot I've ever been on this has never been the case nor even close to a concern from the DP. They restrike the bulb just 30 seconds after it being shut off even when the bulb has been on for 10-15mins or so, it makes a nasty sound from the bulb trying to re-light but other than that it's fine everytime. So if someone can clarify some questions for me? The term Hot-Strike literally means from striking the bulb when it's HOT HOT, like full temperature hot, then it will blow or not restrike? Does the ballast & bulb actually have a major impact on how safe it is to restrike in reality, not theory. If the top question is true, how long is it best to wait? The higher the wattage = the more heat so the longer the wait? Cheers Guys, will appreciate this.