It seems that in my country (I am from Ukraine) is not very easy to get the two-way glass mirror.

One company made for me two-way mirror from regular 4mm thickness glass by titanium coating-in-vacuum technique. It has size 560x780mm. I have asked for transparency rate 30%.
When I took it to home and compared to regular mirror - my “two way mirror” looks darker as compared to the regular mirror.
For me, it is not comfortable to use such dark reflection in the bathroom.
I am attaching the pic to this post - you can see the reflection of window in both mirrors - regular and two-way mirror.

I have looked through the examples of already completed mirrors and some of the are also looks darker, some are pretty light.

Could you please write down there - whether your mirror is darker then the regular one?

I want to clarify this stuff for me because I have nothing to compare with.

Thanx to the info from other topic:

@ganget said in Best glass transparency for MagicMirror:

Maybe this link can help you with answering your question? It’s all about research i guess.

I realized that Acrylic two-way mirror not suitable for big size mirrors e.g. more than 600x600mm due to reflection distortion on big size.
Glass mirrors better suit big sizes magic mirrors.

@Sean thank for yur quick response.
I just want to clarify for myself which type is most common for mirrors based on the users here at this forum.

Hello guys, I am looking for best mirror for my MagicMirror project.

As of now there are two different option for mirrors: Acrylic of Glass mirror.
I will purchase online so no possibility to check personally each type.

My needs:

• mirror for bathroom (e.g. high humidity)
• reflection should be as light and clear as in regular mirror - this will the the only mirror in the bathroom.
• mirror size 600 (w) x 800 (h) mm.
• 21.5’ IPS is planned to be installed behind the mirror.

Could you tell me please the pros and cons for each type of mirror based on your own practical experience.
I want to choose the best one before the purchase took place.

Hey guys, I am newbie at this forum. Nice to meet all of you here!
I am very interested in making MagicMirror myself and have found this forum!

At  the moment I am looking for a mirror for my project. 
Mirror I am looking for needs to fill in the following need: 
the mirror should do its own task - it should looks like a regular mirror in terms of reflection/clearness 
(because this will the the only mirror in my bathroom). 
The size should be 600 wight x 800 height mm.

One-way mirror supplier is asking me for the following parameter: transparency rate.
He can provide me with different options from 0% to 30%.
I have spent another hour in the internet and have found that the regular one is 30%.

Boys and girls, could you please write me:

• what is the transparency rate in your mirrors (if you know it) and

• pros and cons for high/low transparency rate (as i understood the higher the transparency rate -> more visible monitor on the backside and vise verse).

As i said before - it is crucial for me - the cleanness of the reflection