It's Christmas in July for Amazon.

Millions of sales can be found through Wednesday. 

"Amazon Prime Day is basically Christmas in July for us,” says spokesperson Verena Gross.

The Robbinsville fulfillment center is No. 3 in the world for highest volume producing centers because orders get dispersed throughout New Jersey, New York and Philadelphia. 

"We're gonna do about 800,000 per day out of this facility,” says director of operations Brian Perez. “I'll say that it's a 30% increase from our building compared to a normal day."

More than half of the items sold on Amazon come from small businesses.

“Small businesses are really the backbone of our economy and really, really crucial to Amazon itself,” says Gross.

Millions of sales take place on Amazon Prime Day, including 30% off on school supplies, Amazon Fire TVs at up to 79% off, up to 50% off of home appliances and more. Sales will be popping up throughout each day. 

"That refresh button is gonna be your best friend on your browser or on your computer, and you'll see the latest and greatest on Amazon.com,” says Brian Kelly, retail specialist.

It’s the fifth Amazon Prime Day, and it seems like it just gets bigger and bigger each year. It's goes through Wednesday with sales starting at 3 a.m.