We often find there is a lot of confusion between Lumens and Foot Candles and Lux. And even more confusing is how some represent conversion from traditional light sources like Metal Halide and High Pressure Sodium in terms of watts, and not lumens. So why all the confusion. Well, it may be because those who represent this conversion are trying to avoid letting you know about the efficiency of the LED lights, so they claim you can replace X watts of Metal Halide with X watts of LED. What they should really say is that you can replace a 400W Metal Halide with X lumens, and their lights only need Y watts to produce these lumens. We’ll dive into this a little later, but lets first talk about lumens vs foot candles vs lux.

What is a lumen? A lumen is a measurement of light related to (1) fixture or bulb. So when we talk about lumens, we say that a fixture or bulb creates (X) lumens. These lumens are determined by sophisticated measurement equipment.

What is a foot candle? A foot candle is a unit of measurement at a specific location in a room or outdoor location that is created by 1 to many lights. It is a cumulative reading of 1 to many light sources at a specific location. It is both real and calculated. Real in the sense that you can take a light meter and walk to any location in a room or outdoor location and take a reading that represents the amount of light recorded from all contributing lights or fixtures. Calculated in the sense that you can use software to predict the foot candles of a space based on the placement of lights within the simulation.

What is lux? Lux is identical to foot candles. It is a measurement of real or calculated light, but it is done on a different scale. As a rough estimate, 1 foot candle = 10 lux.

So, simply stated, lights produces lumens, and the cumulative lumens of all lights are then determine the foot candle or lux measurement of light at a specific point in an indoor or outdoor space.

If you’re a busy person, constantly running from one place to another, it can be easy to forget some of the little things you leave behind at home. The thermostat, for example, controls perhaps the two biggest energy hogs in your home, the air conditioning and thermostats help improve your home comfort by offering advanced temperature and climate features as well as remote control that simply cannot be beat. Chances are, you are one of many Americans who uses a smart phone, tablet, or computer with internet access every day. A Nest thermostat learns your preferences for daily operation, but can still be controlled from far away if your plans change throughout the day! Here’s a bit more on those features.

1. President Clinton enters cyberspace when he conducts the first virtual town hall. According to an article published in SFGate)

2. Just in time for holiday shopping, Amazon announces that it will expand its offering beyond just books. They’ll be adding software, video games, home improvement products and gifts to their online offering.

3. Football hero Walter Payton (a.k.a. “Sweetness”) dies at age 45 from complications of a rare liver disease. (via EDN)

5. November 19, 1999 The Oddest Day – PGA Tour)

7. Woody and Buzz are restored to fame when Toy Story 2 debuts and becomes an even bigger success than the original. (via Legends of Hockey)

9. Pokemon: The First Movie hits the big screen raking in a whopping $31 million+ during its opening weekend.

10. Encyclopedia Britannica, which once lined the bookshelves of most US households, launches its website … and crashes after two weeks because too many people logged on to its free search. (Photo via Billboard.

1999 was a year of massive growth in the online world. The internet was here to stay, and it’s no surprise that this was the year that Pegasus Lighting took our business online. In November 1999 , the world’s greatest technology companies gathered in Las Vegas for the 20th Annual Computer Dealers Exhibition (COMDEX) to learn about the latest innovations in computing. Our last four November pop culture items were highlighted or debuted at this event.

12. Microsoft’s Bill Gates is the Keynote speaker at COMDEX and introduces Windows 2000, promising that it will be much more reliable than its predecessor, Windows 98.

13. The QBe (pronounced “Cube”) tablet is exhibited with plans to start shipping in Spring of 2000 at a price of $4,495. (via unveiled by Ericsson as a lightweight wireless headset that can work from “up to 10 metres away from phone.”