How do grow lights affect plant morphology?

I’m interested in learning how different types of grow lights can affect the morphology of cannabis plants. Can you explain how the spectrum and intensity of grow lights can impact plant shape and structure?

What is the lifespan of LED grow lights?

I am interested in purchasing LED grow lights for my cannabis plants, but I want to know how long they last. Can you tell me what the lifespan of LED grow lights is and if there are any factors that can affect the lifespan?

How many lumens do cannabis plants need?

I am trying to determine the right amount of light for my cannabis plants. I have heard that plants need a certain number of lumens to grow properly. Can you tell me how many lumens my plants will need and how I can measure this?

Can LED lights be used for both veg and bloom stages?

I am considering purchasing LED lights for my cannabis plants, but I am not sure if they can be used for both the vegetative and blooming stages. Can LED lights be adjusted to accommodate both stages or is it necessary to have separate lights for each?