Illuminance formula explained and transposed

Lay out your revision page on illuminance formula exactly like this. Formula needed to calculate illuminance questions, explained, transposed all ways, what each letter stands for and each SI unit of measure given. For formula sheets and detailed guides, look in the shop at https://www.electricalstudent.co.uk/category/all-products BS7671 18th Edition amendment 2 https://amzn.to/44pCl0a On – Site Guide 18th Edition amendment 2 https://amzn.to/3YOnGKQ Casio Scientific Calculator https://amzn.to/47NJNFe Multi coloured pen https://amzn.to/3EcKWbT 15cm ruler https://amzn.to/44v0rXg 30cm ruler https://amzn.to/44q8ox1 Folding ruler https://amzn.to/45qJ7UP Black writing pens https://amzn.to/3EdnxqI