What is (what we mean) when we say LED lightingFrequencies a

What is (what we mean) when we say LED lightingFrequencies and colors of commercial LED lightingPower requirements and life span of LED lightingHealth related issues of LED lightingComparison of LED lighting to incandescence and florescence lightAlternatives to LED lightingTypical home conversion cost and operational cost the report should: Be at least 3 pages long (double space lines) excluding the cover page. Include pictures and tables as necessary, The last page should have all references used (including internet sites – copy and paste the URLs) . NOTE: could you please use straightforward words and sentences?. Make it as simple as you could . Thank you so much.