Which light range is least effective in photosynthesis?

Related questions

1. What are PAR light bulbs?
2. What is par in LED lights?
3. What is par and how does it help your plants?
4. What is par spectrum?
5. What does par measure?
6. What is Lux in LED light?
7. Do plants need lumens?
8. Can you convert Lux to lumens?
9. What is the minimum illumination level is required in workplace?
10. What's better lux or lumens?

Tags

1. #themselves
2. #pigmented
3. #light
4. #chlorophyll
5. #green
6. #least
7. #plants
8. #because
9. #photosynthesis
10. #effective