Most of the LED bulbs that fell victim to my curiosity had wattless droppers - they probably absorb a little bit of crud from the mains rather than put it there. One of the GU10 LED bulbs that I vandalised was SMPSU type.The Genie Company has actually recently addressed this issue. They developed LED light bulbs that were designed to reduce or eliminate interference that common LED or CFL bulbs can cause with the garage door openers remote. The bulbs are also vibration and shatter resistant and can withstand the additional vibration that a garage door opener would incur when the door is in movement. These bulbs may correct the issues you are seeing with typical LED bulbs in garage door openers.
-Danielle
