This is the Lumens USH4 Ultra LED Smart Box.
This is a plug and play accessory that is sold separately. This device is used to:
- Turn off 'light out' warning indicators
- Complete a series wiring circuit
- Stop LEDs from flickering or turning on and off, due to the vehicle's computer thinking a light bulb is missing
- Other CANBUS related issues caused from converting halogens to ULTRA LEDs
