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.

Thank you,

Luminus Customer Service Team