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.

By Clarissa Allison | January 13th, 2017

Homeowners have always wanted to bring another time to life. Many of us want our homes to feel like a peaceful getaway echoing a country retreat, or to act as a transport to a different (note: picturesque) period of time. Unlike many design trends, the New Farmhouse style marries both of these desires and blends them smoothly. New Farmhouse doesn’t boast the same masculinity as straightforward Neo-Industrial nor is it a predictably dated Shabby Chic look, although some elements can cross-over. Finding the right items to achieve this scheme can be confusing, so we’ve compiled a few recommendations for the ideal lighting fixtures to complement your new design project.

The Kitchen

A variety of ways exist to quickly and efficiently complete an electrical installation. One method involves using pre-made and pre-fabricated conduits, cables, panels, and devices. Pre-fab strategies cut down on repetitive labor costs and scrap material waste.

Furthermore, pre-fabricated components are assembled in quality-controlled factories by highly trained technicians. This ensures that every device and termination is in working order and properly connected. These technicians work faster and cost less per hour than a journeyman electrician, therefore saving the contractor time and money.

Another option to increase efficiency involves using pre-wired devices. They can be used for repetitive tasks like receptacles, switches, light fixtures, data ports, or fire alarms. They save time by eliminating the need to terminate each device individually. Instead, boxes are made to order and ready to install. The desired length of cable is attached and ready to run to the nearest junction point. Simply attach the box, route the cable, and connect to the supply wires. Most suppliers prepare a custom quote, further reducing time spent by the foreman planning and ordering parts individually.

Pre-wired panels are possibly the simplest way to save money, as they require no special tools. Wiring up a panel at the shop before heading to the job site allows you to function test it before installation. This ensures proper functionality. In addition, it keeps the interior of the panel away from weather and other possible sources of job-site damage. For larger or more complex panels, suppliers can be arranged and have the work performed by specialized technicians. Panels can even be ordered with pre-cut and pre-terminated lengths of cable or cord.

Most electricians have used pre-formed conduit, especially PVC which requires specialized tools to bend. However, entire runs of pipe can be custom ordered and pre-shaped. Especially useful in underground conduit networks or when complicated bends are required, these pre-made conduits drop in place and fit perfectly to the engineer’s prints. They also ensure that conduits are not damaged or kinked during the bending process and that no sharp edges or rough spots are left to damage wires or cables.

If the project demands it, entire buildings can be pre-made and pre-wired in a factory setting by trained technicians who specialize in quickly and efficiently preparing custom ordered buildings. Especially useful in industrial settings, these buildings come complete with all interior and exterior lights, switches, receptacles, and control wiring.

Often, motor control centers (MCCs) for large industrial installations are constructed this way. Therefore, on-site electricians are free to begin immediately running cables to motors and devices, with simple termination points inside a completed building. In addition to using fewer electrician hours, they also reduce required hours from other tradespeople such as welders or cladding installers.

Finally, pre-fab strategies are a great solution for reducing material waste, worker hours, and downtime while making deadlines a snap. Projects run smoother with fewer errors.