You are here: Home » Archive Index » LEDs » Portable, Motion-Detecting LED Lights

Portable, Motion-Detecting LED Lights

by Justin on June 25, 2005

in LEDs


B0009GVPSQ.01-A205TXU8DZ488D._SCLZZZZZZZ_.jpgPortable, motion-detecting LED lights are an efficient way to light rooms at night for a few minutes. This portable light from Maxxima, turns on when you enter a room in the dark (similar to motion-detecting outdoor lights), then turns off after 30 seconds of non-motion.

It runs on four AA batteries (we suggest using NIMH rechargeables), and should last about two years before the batteries need to be replaced.


It has a light sensor to make sure it doesn’t turn on during the day. These are useful in a on-suite bathroom or other places you venture in the house at night. It glows with a soft bluish light — enough illumination to complete a task. They can also be used as a reading lights, or during a power failure. These are priced around $15.

Available from: Amazon

Read more! Related stories:

  1. Motion-Sensing LED Lights: A Review
  2. Sharp Introduces Earthquake-Detecting Solar LED Streetlights
  3. A Portable Kinetic Motion Charger
  4. Efficient Unified Bathroom Theory

SocialTwist Tell-a-Friend

{ 2 comments… read them below or add one }

Andy June 26, 2005 at 1:09 am

Maybe I’m way off on this, but it’s my understanding that a NiMH battery’s charge has a shelf life on the order of a few months, whereas alkalines can sit stably for years and years.

In other news, I’m looking into recharging regular alkaline batteries for my low-draw or infrequently used devices (remote controls, flashlights). Here’s one posted on Kevin Kelly’s CoolTools:
http://www.kk.org/cooltools/archives/000709.php

Reply

Hank Roberts August 18, 2008 at 7:32 pm

I’ve used rechargeable alkalines, and
my experience is that they do leak fairly fast if you recharge them a few times
(the recharging process eats away a bit of the casing each time) — and that’s with a slow pulse charger like KK describes. It does work, but take them OUT each time you’re done using the device. Not for standby applications.

Eneloop and similar long-lasting NiMH should work better than standard ones in this kind of application.

Don’t leave them IN anything

Reply

Leave a Comment

You can use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>