Hi, I'm working on an LED array that has 6 Cree UV Xlamps. The dome on one of the LEDs just fell right off. After closer inspection of the other 5, they are all loose and move around when you touch them lightly.
First of all, is this a defective batch or is this just how Crees are? I've been working with Luxeons and Lamina Ceramics Atlas LEDs and have not had any issues with them. They haven't been handled roughly but were placed upside-down on a towel while I was working on the heat sinks.
Second, is there any way to remedy the situation? I have all six epoxied to heat sinks and soldered in and it would be a pain to remove them, and also expensive to replace. Is there a sealant I can use for the 5 that are loose but haven't come off yet? What about a little bit of thin CA glue around the base of the dome? Is the one that's completely fallen off ruined now that its exposed to air? They all light and the beam may be ok since these are being used without optics or reflectors.
First of all, is this a defective batch or is this just how Crees are? I've been working with Luxeons and Lamina Ceramics Atlas LEDs and have not had any issues with them. They haven't been handled roughly but were placed upside-down on a towel while I was working on the heat sinks.
Second, is there any way to remedy the situation? I have all six epoxied to heat sinks and soldered in and it would be a pain to remove them, and also expensive to replace. Is there a sealant I can use for the 5 that are loose but haven't come off yet? What about a little bit of thin CA glue around the base of the dome? Is the one that's completely fallen off ruined now that its exposed to air? They all light and the beam may be ok since these are being used without optics or reflectors.
