Normally plugging 5 LED light bulbs should not manifest any problems if your dimmer is listed as being compatible.
Have you tried troubleshooting with other type of bulbs ?
There might be an issue with the installation.
You can always contact one of our customer service representative at 1-877-333-0098 and troubleshoot with the representative. Our reps are very knowledgeable with such issues and have experience in electrical fixtures.
Luminus Customer Service Team