Lumen converter

CVIA Lumens

The CVIA lumen standard is China's first brightness standard for the projection industry, jointly compiled by the China Video Industry Association, Dangbei, and other upstream and downstream companies. It has stricter testing standards and requirements and is currently the mainstream unit of brightness for projectors in China. Higher CVIA lumens indicate a brighter projection.

ANSI lumens

The international standard unit for measuring luminous flux in projectors is the ANSI lumen. ANSI lumens are a method for measuring projector luminous flux developed by the American National Standards Institute (ANSI). This standard specifies a "nine-point" measurement method, which involves measuring the brightness of the projected image at nine points under certain conditions and then calculating the average brightness value of the nine points. It strictly requires a specific projected image size, ignores projection distance and potential losses during projection, and is relatively simple to calculate overall, making it the current mainstream brightness standard.

ISO lumens

Officially released in August 2005. Commonly found in Japanese projector brands. This standard requires attention to the power of the light source, noise, and the impact of various factors on brightness during testing. The calculation process not only has requirements on the size of the measurement screen but also considers the projection distance and losses that occur during projection; therefore, the calculations are relatively strict, and the measurement standards are higher.

Light source lumens

Lumens refer to the brightness of the light source used in a projector. Since this brightness has not been attenuated, the value is often very high. However, it does not represent the brightness we see. The brightness of the screen from such a projector will be lower than the value indicates, so it is not a very useful parameter.

CCB Lumens

CCB lumens are not an industry standard. CVIA is the standard recognized by the Chinese projection industry, and the CVIA standard is issued and supervised by authoritative domestic institutions.

How do I choose the brightness level?

Generally speaking, the higher the ANSI or CVIA lumens brightness, the better. Choose the brightest option within your price range. If you want a top-of-the-line solution, consider an ALPD laser projector, which offers superior overall brightness. A prime example is the Dangbei X5, boasting 2450 CVIA lumens, making daytime viewing effortless. It's currently the brightest DLP home projector in China, featuring ALPD laser technology that eliminates speckle and delivers clearer image quality. According to third-party data, one out of every two laser projectors sold in China is a Dangbei.