The bulbs are indeed getting used to at first and have all a small Macke, namely that the plastic cap over the LED's is not fixed. Have the but solved for outdoor use by a little all-purpose glue. The caps are now firm and tight. And the protection is now no different than if I had installed normal light bulbs or halogen bulbs. And with 30 bulbs in lights tree no 40 Watt power consumption, it's okay. This is one tenth of the current consumption. I'm excited. Addendum: formerly the bulbs have a storm rarely survived. The LEDs now have so no problem at all. The shock sensitivity, even when hanging is equal to zero.