Do cannabis seeds need light to germinate?

I’m getting ready to germinate my cannabis seeds, but I’ve heard conflicting information about whether or not they need light. Some people say that light is required for germination, while others say it’s not necessary. What’s the truth?

SCROG and light distribution

How does the SCROG method affect light distribution in the grow room? I’ve heard it helps evenly distribute light to all the plants, but I’d like to learn more.