I had same problem on my 400w radium, I post it here, with no one could answer me. I did get replacement bulb. But I still used this one with no issues.If anyone will have the answer to this I know it will be someone here. I just received an order for two radium, 400watt bulbs. One of them appears to be damaged. I’m attaching a picture of the damaged bulb for you to see. There seems to typically be a small flat piece of metal that is bonded/welded to the metal rod that comes off of the top of the arc tube. On this bulb, this flat piece of metal has fallen off and it’s just laying inside the glass. I’m not sure what the function of this piece of metal is for. The bulb did in fact fire up when I tested it. I let it run for about five minutes and everything seemed OK. Not sure if not having this flat piece of metal attached will have any long-term effect on the function of the bulb? Any info on what the function of this displaced piece of metal does and if it will in fact effect the function of the bulb long term would be appreciated.
Thanks in advance!!!
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