# What is it about LCD flash lights that make me not like them..

**URL:** <https://boards.straightdope.com/t/what-is-it-about-lcd-flash-lights-that-make-me-not-like-them/420276>\
**Category:** Factual Questions\
**Created:** [September 24, 2007, 6:42am UTC](https://boards.straightdope.com/t/what-is-it-about-lcd-flash-lights-that-make-me-not-like-them/420276 "2007-09-24T06:42:48Z")\
**Posts on this page:** 1\
**Page:** 2

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**Author:** ![scr4](https://avatars.discourse-cdn.com/v4/letter/s/59ef9b/32.png) [@scr4](https://boards.straightdope.com/u/scr4)\
**Post date:** [September 26, 2007, 5:26pm UTC](https://boards.straightdope.com/t/what-is-it-about-lcd-flash-lights-that-make-me-not-like-them/420276/21 "2007-09-26T17:26:53Z")

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Another thing - most LED flashlights are unregulated. They are at the peak brightness when used with a fresh set of batteries, but it gets dimmer and dimmer as the battery is used up. But it may not _look_ dim because it still emits bluish white light, unlike a halogen bulb running on dying batteries. This probably contributes to the notion that LED flashlights are dim. Every time I replace batteries in my LED bicycle taillights, I’m amazed how much brighter it is with fresh batteries.

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