<<  <  Page 6/6
User Rank
You could create your own lamp.
armorris   11/30/2012 8:30:04 AM

You could use my circuit to create your own custom LED lamp. You could make a beautiful LED desk lamp out of wood. My father was a skilled furniture maker, who went into electronics when his employer moved to an assembly-line manufacturing style. When he got engaged to my mother, he had no money for a diamond engagement ring, so he made her a small, but very beautiful wooden table lamp. That lamp was far more precious to her than any diamond ring could have been. One of my sisters has the lamp now.


User Rank
It's economical too.
armorris   11/30/2012 8:27:46 AM

The original 9-watt fluorescent tube in the lamp costs about $5 and lasts about a year with heavy use. I spent $21 on the LEDs I installed in the lamp and they should last for many years of heavy use. The remaining parts cost about $10, not including the lamp itself. The 72 LEDs produce plenty of light for reading. The lamp does not light up the whole room like the fluorescent version did, but it brilliantly illuminates whatever it's aimed at. At its focal-point it's a lot brighter than the 14-watt fluorescent lamp (with a new tube in it) that I had been using for reading. The color is better, too. Now, I'll just use my fluorescent lamps for area lighting.

User Rank
It's just what I need.
armorris   11/30/2012 8:18:18 AM

My new LED desk lamp is just what I need. I set it on a table beside my easy-chair. It produces a natural white light, like daylight. The light from the LED array is very focused, like a big flashlight. BTW, you should use LEDs with a viewing angle of 30 degrees or wider. The dimmer greatly enhances the lamp's utility. I can turn the brightness up for easy reading, or I can dim it down to the point where it perfectly illuminates my laptop keyboard, without the hassles of my USB light. Turned all the way down, the lamp produces enough light to illuminate my TV remote while not affecting the view of my TV. I also use it as a nightlight. I also use the lamp as a work light, because it can be folded or rotated to illuminate my work surface, without being in my way. The lamp is very portable and is much lighter than it was, having lost its heavy ballast coil and glass tube.

<<  <  Page 6/6

Partner Zone
Latest Analysis
Imagine being able to illegally download a physical product the same way you can with music and video. The advent of desktop, home, and prosumer 3D printers is having huge repercussions in the intellectual property domain.
Our latest Design News Quick Poll reveals that readers are facing serious cyber security challenges.
Ford will be the first automaker to commercially use Alcoa's tough & fast Micromill aluminum alloy process and materials, debuting on several 2016 F-150 truck components. Alcoa will also license its Micromill process and materials technology to Danieli Group.
Even as an increasing number of instrument manufacturers migrate toward modern touch screens, many engineers say they still prefer the tactile feel of knobs and buttons, a new survey says.
Caterpillar Inc. demonstrated this week at Design and Manufacturing Philadelphia that heavy industry can reap big benefits from 3D printing.
Design News Webinar Series
10/1/2015 11:00 a.m. California / 2:00 p.m. New York
9/10/2015 11:00 a.m. California / 2:00 p.m. New York
8/13/2015 11:00 a.m. California / 2:00 p.m. New York
10/20/2015 8:00 a.m. California / 11:00 a.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Oct 5 - 9, Standards for the Internet of Things (IoT)
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7

Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service