Separate input from light output
Input power describes electrical demand. Luminaire luminous flux describes emitted light. Neither alone tells you the distribution on a working surface.
Compare the installation and optics
Check dimensions, mounting, beam or distribution, glare criteria, ceiling or pole conditions and service access against the actual space.
Match the documents to the item
Ask whether the datasheet, drawing and photometric file identify the same model, options and revision shown in the offer.