Headlight & Taillight Tinting essentially comes in four different gradients: 70% or Light Grey Tint being the lightest (meaning it allows the most light through the material.) 30% or Dark Grey Tint. 60% which is achieved by applying two layers of light grey tint. And 5% or "Limo tint" which is achieved by applying two layers of dark grey tint.
As of 2018 CVC (California Vehicle Code) prohibits fog, headlight & taillight tinting. We recommend all customers review their local and state laws before making these modifications.