Every product is a full datasheet: specs, certifications, beam tables, finishes and a downloadable PDF. The product page is interactive: pick a wattage and the image swaps, so a visitor comparing a 12W and a 72W version sees the difference.
A CMS the client actually runs, covering products, case studies, articles with a proper editor, and galleries. Images go to Cloudinary, filed per project, and datasheets attach themselves to the right product.
SEO is a control panel rather than a code change: titles, descriptions, canonical URLs and index flags per page, structured data generated in one place, and a tag manager so their agency can add tracking scripts without touching code.
The contact form and gated catalogue downloads save every enquiry and send two emails, one to sales and one back to the visitor. And if the database is ever unreachable, product pages fall back to a bundled copy of the catalogue, so the site stays up and correct.