What Is TSER in Window Tint?

A useful answer starts with what total solar energy rejected means in a film specification.

This guide focuses on what total solar energy rejected means in a film specification. The exact product, glass, coverage, installation, and current requirements still control the final decision.

• Ask what glass and shade were tested
• Keep TSER separate from IR rejection
• Use the figure as a comparison, not a cabin-temperature guarantee

TSER describes a broader solar-energy measurement

TSER stands for total solar energy rejected. It is intended to describe how much of the tested solar energy a film-and-glass combination rejects, but the number is tied to the tested product, shade, glass, and method.

• Ask what glass and shade were tested
• Keep TSER separate from IR rejection
• Use the figure as a comparison, not a cabin-temperature guarantee

Use the actual glass instead of a stock assumption

A TSER value from a dark film on clear glass should not be presented as the expected result for a light film over factory privacy glass. Ask what was tested before using the figure in a decision.

Common questions

Does TSER tell me exactly how cool my car will be?

No. Cabin comfort also depends on glass, coverage, vehicle size, sun angle, parking, ventilation, and the condition of the interior.

Related window tint resources

• Florida tint guidance
• Ceramic window tint
• Ask for a project-specific comparison