I replaced a pair of amber four LED surface mounts with these, and GOOD LORD!!! My rear setup has been the surface mount pair, an interior mounted traffic advisor, and my SUV's upgraded led hazard flashers. The aptly described "Massive output" of the Slivers made me realize that activating the hazards are no longer needed, and just let them be turn signals. Shoot, the advisor is almost not needed, too.
On a small to mid-size POV car, any more lighting than two of these per side could very well be considered overkill.
Great job, Strobes N More!
Reviewed by: (Verified Buyer) Travis May from Greensboro, NC.