Helix LED tail lights not working *HALP*

So I bought a set of these Helix LED tail lights off of someone on the Panjo site. They were never used and are brand new.

The right side works perfectly, but the left side is dimmer and does not get brighter with the brakes applied. Any suggestions here?
:cry::cry::cry::cry::cry::cry::cry::cry::cry::cry::cry::cry: :cry:
http://ift.tt/2u262UU

http://ift.tt/2u22amX

http://ift.tt/2u20GsV

Helix LED tail lights not working *HALP*