Decide what deserves attention.
HDR is most useful as a deliberate design choice. Before converting, identify the one element you want someone to notice first. If the composition is already confusing, more brightness will not resolve it.
A compact white mark against a darker area is an easy first experiment. Large white backgrounds can dominate the frame and make the result less comfortable to look at.
Keep the product honest.
Compare the treatment with the source. Watch product color, material texture, skin tones and small text. If the image becomes less faithful or less legible, pull back the brightness or target fewer highlights.
Keep a conventional product-image master. Check the destination’s current image requirements separately before using a treated campaign asset in a catalog or product feed.
Design an ordinary-screen version too.
The extra brightness is not available to every viewer. Some setups may render the image darker or tone-map it differently. Look at the final artwork on more than one screen and keep an SDR alternative available.
There is no verified, general conversion-rate uplift to promise here. A visual effect can draw interest without improving the quality of that interest. Test the business outcome you actually care about.