I can't get the connector adapter to attach from the pigtail to the luminaire. Is there a trick to this?

Hello, 

You may choose between two options to resolve your issue. 

1- Cut the connectors off and make a hard-wired connection.
2-Take some pictures of the 2 connectors and contact us at customer service at 1-877-333-0098, and we may have a pigtail connector sent to you.

Thank you, 

Luminus Customer Service Team