What is the transparency rate of Half-Cut Glass/Glass DualSun panels?

Edited

 

With a Glass/Glass panel, the backsheet is made of glass.

 

Unlike the DualSun FLASH Half-Cut White panel which is made of a white backsheet or the DualSun FLASH Shingle black panel which is made of a black backsheet. 

Between each cell there is therefore a space where light can pass.

If we calculate the ratio between the light passing through the panel on the light received on the panel, we obtain a transparency rate.