LED vs Fluorescent lights

Governments are taking steps to remove CFLs from the market

Very interesting article about CFL and fluorescent bulbs being phased out:

Read the article here.

Contact us at Twin Supplies to help with your conversion to LED and save money on your energy bill while helping the environment!

Twin Supplies Blog

Twin Supplies Blog

SERVICE AREANATIONWIDEPreviously serviced areas in: California, Colorado, Florida, Illinois, Indiana, Iowa, Michigan, Minnesota, and Wisconsin. SERVICES LIGHTING PROJECTS Twin Supplies, Ltd. 1010 Jorie Blvd., Suite

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Twin Supplies

Korex Chicago

Project Overview This job was completed at Korex Corporation, a manufacturing facility located on the south side of Chicago. This project focused specifically on the

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Holy Cross Church - After
Twin Supplies

Project Snapshot: Holy Cross Church

Twin Supplies recently completed an energy upgrade project at Holy Cross Church in Chicago, IL. The high ceilings and beautiful cathedral-like structure made replacing incandescent bulbs in the ceiling a costly and time consuming ordeal.

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Personal Protective Equipment

As an essential business, Twin Supplies continues to be open and serving all our clients during these unprecedented times. In addition to our usual energy efficiency endeavors, we have also been able to secure personal protective equipment such as 3 ply disposable masks, KN95 masks, face shields, and hand cleaner. Please contact us If we can help you, your families and your co-workers stay safe during this pandemic.

Check Out Our New Multi-Family Project Snapshot on Facebook!

Check out our new post on Facebook where we analyze a recently completed LED lighting project for roadway lighting at an apartment complex. The customer paid $0 out of pocket to retrofit 77 light poles!!


Occupancy and Daylight Harvesting Sensors – How They Work And How They Can Help Dramatically Lower Your Energy Usage

LED technology continues to rapidly expand and advance, and we at Twin Supplies are here to help you make sense of it all! One of the most crucial components of the new generation of LED fixtures are the advanced lighting controls, including occupancy sensor and daylight harvesting capabilities. Local utility companies offer significant rebates for upgrading to lighting fixtures with advanced controls, and Twin Supplies is always ready to help. Check out some useful information below relating to these technologies and how they can benefit your bottom line!

The first advanced lighting components we will analyze come from Philips, and they are known simply as the EasySense “Sensor 200” line. The SNS200 module is used used on 2×4, 2×2, and 1×4 lay-in troffer style fixtures, as well as on surface mounted strip lights. The second version, called the SNH 200, is used on highbay fixtures in high ceiling settings.

Both sensors have the same functions and capabilities, the only difference is the height ranges in which they can be used. The first function of both is occupancy sensing, and this ensures that fixtures will turn themselves on as soon as they detect occupancy in the room using their PIR sensor function. Then, after there is no more movement present in the room for any programmed amount of time between 30 seconds and one hour, the fixture will dim down to a preset background light level of 20%, or any other desired percentage you may choose. After another chosen time of 30 seconds to 3 hours after that, the fixture will then completely shut off.

The second function of the Sensor 200 is daylight harvesting. These photometric sensor capabilities will dim the fixtures according the amount of light that is ambient in the room. By detecting how much natural sunlight is being let into the area, the sensor is able to reduce the amount of power being drawn from the fixture while also maintaining adequate light levels. As the day goes by, the system detects when there is inadequate sunlight remaining to supplement the lighting, and it returns the fixtures to full power. As we understand that some areas require constant light operations, for example manufacturing plants that operate 24/7, both functions can be tweaked if need be, depending on the specifically grouped area where they are being implemented. They can also be task tuned in a variety of ways to achieve the light level and sensor functions needed.

The aforementioned sensors can also be meshed together through a near-network using a module from Zigbee, which allows for convenient, wireless control of grouped lighting fixtures. A sensor is mounted on each fixture to achieve this networked connection from fixture to fixture. Zigbee is a low-cost, low-power, wireless mesh network standard targeted at devices in wireless control and monitoring applications. The Zigbee product delivers low latency communication, which allows the grouped lights to “talk” to each other. For instance, when you walk into a room, the first light that detects occupancy will tell all the other lights of the occupancy instantly, and all lights in the room will come on at once. Likewise when all sensors detect no occupancy after the set time (factory Setting is 15 minutes), they in turn tell all the other lights to first dim down to their background light level (factory Setting is 20%), and then turn off fully after another set period of time (factory setting is 15 minutes).

The EasySense sensor operates with the established Xitanium SR driver standard to make a simple two-wire connection between sensor and driver,thus eliminating the need for multiple components and auxiliary devices. There is no need to pull low voltage dimming wire, and no need for CAT-5 cables. The result of this pairing of EasySense sensor and Xitanium SR Driver is a cost effective and easy to design solution ideal for energy savings, and lighting and control improvements. An intuitive app operated from a cell phone makes configuration and commissioning during and after installation fast and easy using Philips field apps.

Here at Twin Supplies, we have control specialists who have been working with these systems since the very first generation and will get the light task tuned to the exact unique needs of your business. Contact us today to learn more!


-Matthew Skokna, Project Manager at Twin Supplies

COVID-19 Update – Twin Supplies Remains Open

To our valued Twin Supplies clients, vendors and business partners,

As part of our commitment to your health and safety, we are continuing to closely monitor the COVID-19 situation and are taking extra precautions in order to ensure the healthiest possible environment for all. As you may have heard, Illinois Governor J.B. Pritzker issued an executive order on March 20th, asking all citizens of the state to shelter in place. In this order, the governor also made distinctions regarding essential businesses. Twin Supplies, within the guidelines set forward by the governor, is continuing operations so that we can support other essential businesses with the products and services they require to remain operational.

While we are currently maintaining a “no visitor” policy at our office, we continue to remain available at any time via e-mail, phone, or in person with limited contact, and are working remotely to ensure all projects and orders continue to move along as smoothly as possible.

We realize that every entity, whether in the public or private sector, is going through an unprecedented time right now, and we just wanted to remind you that our team continues to be available for any of your lighting needs, no matter how big or small. Please accept our sincere thanks for your continued patronage and business as we all work through this challenge.

ComEd LED Streetlight Energy Incentive Extended

Find out how you can still take advantage of ComEd’s LED streetlight replacement bonus program and get as much as 2.1 times the regular ComEd energy rebate.  The offer only extends through the end of 2017 and available on a first come first serve basis!

Korex Chicago

Project Overview

Delviro highbays in warehouse

This job was completed at Korex Corporation, a manufacturing facility located on the south side of Chicago. This project focused specifically on the installation of energy efficient lighting in their storage warehouse. The total project cost was $23,447, with the company receiving $18,698 worth of rebates from the ComEd Energy Efficiency Program. Korex wound up paying only $5,541 out of pocket for the total project – less than 25% of the total project cost!

Project Details

This simple project consisted of replacing Qty (48) – 400W existing Mercury Vapor fixtures with Qty (33) Delviro Titan 160W LED highbay fixtures. The Titan LED fixtures were a perfect solution for this application because they perform better in high, open areas and provide optimal lighting for vertical surfaces, such as shelving. Furthermore, since this location is primarily a storage facility, the occupancy sensor was an ideal way to deliver even more energy savings. For example, the fixtures turn on once a customer enters the area, remain on while they source the material and deliver it to another part of the factory. After 30 minutes of no activity, the lights in the storage area shut off automatically, saving additional energy and reducing operating costs even more.

In the end, Korex reduced their monthly electrical charge from $900 to $300 saving the company $600 a month in just electric charges! The payback on this project is a little over 9 months. Also, the Delviro fixtures used in this project came with a 10-year warranty and are virtually maintenance free for the duration of the life of the fixture. “These provide incredible maintenance savings!” Jim Barca reported, “[the new lights] brighten my day every day, and I am so happy I am saving money and not burning unnecessary energy.”

How can we help you?

Our customers benefit from financial savings, as well as by reducing their overall carbon footprint and taking advantage of the rebates offered by utility companies.

Twin Supplies is a professional lighting company which provides FREE lighting assessments and identifies potential energy saving measures. We also complete all necessary paperwork at no cost, and install LED samples to ensure our customers will be pleased with the final results.

Click on the link below to like our Facebook page and learn more about our company! If you are pleased with the service we have provided for you, please give us a review! We appreciate your feedback!


Timothy Snow, Project Manager


Special PSEE Bonus Rebate for LED Streetlight for a Limited Time

The Utility now manages the energy efficiency portfolio for public sector customers in Illinois. They have announced a limited time bonus rebate for replacing existing inefficient streetlights with LED. While the regular exterior LED incentive of $.70 per watt reduced is already very good, ComEd has now added an increased incentive for municipal streetlights based upon kWh reduced. This new bonus rate is an extremely generous $.30 / kWh reduced! By taking advantage of these rebates, customers can have up to 75% of the cost of a streetlight project covered!

The rebate funds are on a first come first served basis. Please contact our office today at (630)590-5138 for more information. Our experienced project managers will explain the details of the program to you and perform a complimentary, no obligation light audit at your facility. Call us today and start saving money tomorrow!

Holy Cross Church - After

Project Snapshot: Holy Cross Church

Twin Supplies recently completed an energy upgrade project at Holy Cross Church in Chicago, IL. The high ceilings and beautiful cathedral-like structure made replacing incandescent bulbs in the ceiling a costly and time consuming ordeal.