CHARLOTTE, N.C. – P.T. Harbin thinks of himself as a modern day Clark Griswold.

He has close to 20,000 energy-efficient Christmas lights and his electricity bill just about doubles during the holidays, but the smiles he sees are priceless.

"The look you get on kids' faces when they pull in the cul-de-sac and jump out of the car and run around," Harbin said.

He's been putting up lights for years. Each Christmas he adds a little more to the show. This year's addition: A 22-foot mega tree.

"It's awesome, I love it. It's my passion," said Harbin. "This was kind of like my blank canvas when I moved here."

The legwork on this masterpiece took nearly 40 hours. Harbin started way back in October before Halloween. Through his display, Harbin is paying it forward for a special young boy.

Xander Kuchinski battled a rare form of brain cancer. In doing so, he inspired an entire community.

"His parents challenged the community to pay it forward and do small acts of kindness and I see this as definitely a way to pay it forward," explained Harbin.

The Make-A-Wish Foundation was able to send him and his family to Disney World this past spring. Harbin is now collecting donations from his display to give back to the Make-A-Wish Foundation.

The charity has a special play in P.T.'s heart. At 5-years-old, his sister was diagnosed with a rare genetic defect.

"They granted a wish for my sister when we were children, so it's definitely my charity of choice," Harbin said.

Harbin's address is 10223 Summer House Court. You can also find more information about how to donate on the house's Facebook page – Harbin Family Christmas Lights.