- The Online Magazine for the Sign Trade.
Home | Site Map | Buyer's Guide Search  
Event Calendar Article Archive Message Boards Classifieds Product Showcases News Advertise Search Join Now

  3-D Signs
  Awnings &
  Flexible Face
  Business Development
  CNC Routing
  Computer Technology
  Digital Imaging
  Dynamic Digital
  Finishing & Lams 
  Flatbed UV
  Garment Decoration
  LED Displays
  LED Lighting
  Neon & LED
  Channel Letter
  Painted Signs
  Screen Printing
  Vinyl Signs
  Hot Shots
  Press Releases
  Tips & Tricks
  Industry Resources
  Event Calendar
  Business Center
  Retail Sign Shops
  Advertising Info

Estimate Software- Printing software that helps you find the hidden treasure in your business.


Updated: February 20 2019 - Feel free to post below. By doing so, you are agreeing to follow our Acceptable Use Policy. If you'd like to contact us, drop us an e-mail here.

General : 


Estimate Software- Printing software for the rest of us.

Goto Thread: PreviousNext
Goto: Forum ListMessage ListNew TopicSearchLog In
LED will be the future of Lighting
Posted by: rain5539 (121.15.28.---)
Date: April 30, 2007 10:33PM

Why Use LEDs?

LEDs have a range of benefits which is fast making them the best solution for real energy efficient lighting. Over the course of the next few years some aspects are expected to change significantly.

As solid-state light sources, LEDs have a very long lifetime and are generally very robust due to no mechanical or moving parts.
Incandescent bulbs have an expected lifetime of 1k to 5k hours, while good quality LEDs are often quoted of having a lifetime of 50k hours, more than 5 years continuous use. However it is important to to understand that the performance of LEDs degrades over time, and this degradation is strongly affected by factors such as operating current and temperature.
Low maintenance

The long lifetime of LEDs reduces the need to replace failed lamps, and this can lead to significant financial and environmental savings, particularly in maintenance, labour and recycling. This makes LED fixtures useful for installations in inaccessible locations, but if tasks like cleaning the light fixture are required, then the light sources could be replaced at the same time, negating the "low maintenance" advantage.

As a semiconductor device, LEDs are highly efficient. Current device technology is allowing the performance of these to be pushed to limits that exceed that of standard lighting.

The directional nature of light produced by LEDs allows the design of luminaires with higher overall efficiency.
Low power consumption
The low power consumption of LEDs leads to large energy savings that can often drive the installation of LED-based systems. Initial purchase costs start off higher, but can be proven to return the investment cost in a short period of time.

Light outputs are constantly being increased and there are several products that have higher lumen output than traditional lighting.

LEDs do not produce heat in the form of infrared radiation (IR) unlike incandescent bulbs which makes them hot to the touch.
This lack of heat production allows LED fixtures to be used in locations where heating from conventional sources would cause a particular problem e.g. illuminating food, textiles, artifacts, etc.
However, LEDs do produce heat at the semiconductor junction within the device and good thermal management must be employed on high power devices to maintain operation life Cost

In many applications, LEDs are expensive compared with other light sources, when measured by metrics such as “£-per-lumen”.
LED manufacturers continue to work towards reducing their production costs while at the same time increasing the light output of their devices.
However, the high initial cost of LED-based systems is offset by lower energy consumption, lower maintenance costs and other factors.
The initial cost may seem high, but take into account the electricity usage that is saved, they pay for themselves.

Small form-factors
LEDs are very small - typical high-brightness LED chips measure 0.3 mm by 0.3 mm, while high-power devices can be 1 mm x 1 mm or larger. There are many examples where the availability of small, high-brightness devices have enabled significant market advancement. The obvious example is in mobile phone handsets, where blue, green and white LEDs are now used in most models to back light keypads and liquid-crystal display (LCD) screens.
Instantaneous switch-on
LEDs switch on rapidly, even when cold, and this is a particular advantage for certain applications such as vehicle brake lights.

LEDs are available in a broad range of brilliant, saturated colours (although performance varies across the spectrum), and white devices are also available. Modules containing different colored LEDs (typically red, green and blue, or RGB) can be tuned to a huge range of colours, and easily dimmed. RGB modules provide a much wider gamut of colours than white LEDs or other traditional white light sources, which is a particular advantage in applications such as backlighting liquid-crystal displays (LCD's).
RGB LEDs and colour mixing

LED characteristics change with time, temperature and current, and from device to device. For RGB LEDs, the performance of different colored devices changes at different rates. This can result in variation of lamp colour and intensity, and poor reproducibility.

Sorry, only registered users may post in this forum.

Dakco LED Displays

Advertising Info
About Us
Contact Us
Privacy Policy
Site Map
Industry Resources
Retail Sign Shops
Product Showcase
Event Calendar
Tips & Tricks
Message Boards
Buyer's Guide Listings
Add My Company
Edit My Company


© Copyright 1999-2019, All Rights Reserved.