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**Plulpangepler** · 08-22-2012, 05:01 PM

I can tell you that my bulbs are enclosed in a ribbed aluminum case that is both the enclosure for the rectifier, resistors and circuit board, as well as heat sink. They are very warm to the touch, but not "burn yourself" hot. 3" below the LEDs, you can detect no temperature increase. They are very cool compared to HPS.

I cannot speak for the ballast, but I don't think you dare get near an HPS bulb.

08-22-2012, 05:01 PM	#6
Plulpangepler Join Date Oct 2005 Posts 366 Senior Member	I can tell you that my bulbs are enclosed in a ribbed aluminum case that is both the enclosure for the rectifier, resistors and circuit board, as well as heat sink. They are very warm to the touch, but not "burn yourself" hot. 3" below the LEDs, you can detect no temperature increase. They are very cool compared to HPS. I cannot speak for the ballast, but I don't think you dare get near an HPS bulb.
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