write the difference between the led lights and incandscent bulbs of efficiency and lifespan with the graphs or calculation or photos for the it helps you to explain a concept. You can also use maths to show calculations about efficiency You need to look for data / graphs to be able to show some trends and patterns as per ISMG-

the identification of sufficient and relevant evidence

thorough identification of relevant trends, patterns or relationships

thorough and appropriate identification of limitations of evidence

insightful interpretation of research evidence about electricity demonstrated by justified scientific argument/s.

write the Quality of evidence

Trends and patterns

Evaluation and limitations of the claim

Improvements of the claim

Extensions of the claim

Conclusions

what ever thing you will provide reference that thing + intext and apa7 reference