Universal 6.4" Round Black Plastic Light Grilles with White Logo for 500, 500FF-Series by Hella®. 1 Pair. Looking to protect your Hella 500, 500FF-Series lights from rocks and grime when traversing through harsh terrains? Look no further than these superior light grilles. Made from extremely durable plastic materials, they deliver unsurpassed levels of protection and reliability. Meticulously designed, these light grilles are also the great way to complement your vehicle’s look.