How do you account for the fact that you’re using lasers and not sunlight and therefore can’t actually get a comparible

Question: How do you account for the fact that you're using lasers and not sunlight and therefore can't actually get a comparible result to the real world as sunlight and laser light differs?
- Keywords:
  energy,
  how science works,
  light,
  solar
Asked by Sam W. to Rebecca on 10 Nov 2014.
- Rebecca Ingle answered on 10 Nov 2014:
  
  It depends a lot on what exactly you’re trying to understand. Real sunlight is a combination of different wavelengths of light (including visible light, IR and UV light) whereas we do some of our laser experiments at a single, precise wavelength or for the ultrafast studies, using a broader range of wavelengths.
  
  What I try to do is understand in a huge amount of detail exactly how a single wavelength triggers a reaction. This is still important as this means it is one of the possible reaction pathways that can be triggered by sunlight.

Question: How do you account for the fact that you're using lasers and not sunlight and therefore can't actually get a comparible result to the real world as sunlight and laser light differs?