Are TheraSpecs suitable for driving?

For driving at night, the only TheraSpecs that are suitable are Contrast HEV and Flex.

According to a standardized test, some other tints can interfere with the color of traffic signals. Because of this, in some places they are not suitable for driving any time of day.

Here’s a list by location:

• United States: FL-Pro Max, Z-Blue Max, Sleep, and FL-Sun UltraDark+
• European Union: FL-Pro Max, Z-Blue Extra, Z-Blue Max, Sleep, and FL-Sun UltraDark+
• Australia & New Zealand: FL-Pro Extra, FL-Pro Max, Z-Blue Extra, Z-Blue Max, Sleep, and FL-Sun UltraDark+