Learn Farsi: این چراغ‌قوه به اندازه‌ی کافی روشن نیست، پس ایمن نیست. - This flashlight is not bright enough, so it is not safe.

In Farsi, be andâze-ye kâfi comes before the adjective it modifies. So we say be andâze-ye kâfi roshan (literally "enough bright"), whereas in English we put "enough" after the adjective ("bright enough").

Doesn't roshan usually mean "turned on"? How does it mean "bright" here?

Yes, roshan is often used to say a device is "turned on" (like a TV or a light). However, its core meaning is "light" or "bright." Here, because we are talking about how much light the flashlight gives, the context tells us it means "bright."

How does the word cherâgh-ghove translate to "flashlight"?

It is a compound word. cherâgh means "lamp" or "light," and ghove means "power" or "force." So a cherâgh-ghove is literally a "power-lamp" or "battery-powered lamp," which is the standard Farsi word for "flashlight."

What does pas mean in the middle of this sentence?

Here, pas connects the two ideas and means "so" or "therefore" (it is not bright enough, so it is not safe). You will also often see pas used to mean "then" in other situations.