• When the brake is applied, the programmed flash or strobe pattern will alternate between left and right side lighting accessories creating an eye-catching pattern
• Compatible with add-on custom LED lighting (such as Custom Dynamics® LED Boltz™ PN: 2040-2838 & 2040-2839) when used as left and right side rear brake lights
• 10 selectable flash/strobe patterns
• Plug and play installation

(1) Alternating brake strobe module

(1) "Y" Adapter harness

(10) Black cable ties

No instructions