Do LED 'quick-sensor' nail clippers actually work?

Reviewer opinion is genuinely split. Verified-purchase reviewers and some Yorkie and small-breed owners say the light helps them see the quick on dark nails, while r/DailyWowStuff and r/dogs commenters argue the LED can wash out the nail and that the 'sensor' marketing is overstated. They're most useful on small dogs with light-colored nails.