This is a replacement led board for the OEM 3 bulb 3rd Brake light.
The LED board is Brighter and reacts quicker than stock incandescent bulbs.
This kit also includes an F1 Pulsing module. This will Pulse the brake light fast 3 times, then Mid speed 3 times, and then go solid Red.
Minor work is needed to install. Remove the front lens and then glue in the boards which have special adapters to fix them in the exact location needed. You then connect the bulb adapter to the OEM socket harness.
Instructions can be found here.
AZRX7 offers to do the install for you, but there will be a $50 Shipping & Handling return shipping charge.