Constant Electric Supply Co.

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What a difference LED Lighting makes

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  As a Wholesale Lighting Supplier for the Chicago Market we want to extend our hand to you in hopes to establish a relationship, one that is built on trust and based on our 40 years of lighting experience. As a supplier we have been able to stay ahead of market conditions and anticipate pricing projections.  Call today for free quotes. No job is to small, we handle it all.

Call for Wholesale Pricing,  Close-out Pricing,  Volume Discounts!!!!!

  1. cl13

Simple way to save energy and lasts 5 times longer than a 60w lamp           
*with Lamp, with or without pull chain 13watt     Only $13.95 ea.

Energy Saving Closet Fluorescent CL13 with or without pull chain. 


  1. Our customer base extends from the general public, to architects, decorators, designers and work with ownership to achieve the look they want at a price that falls into there budgets. Our specialty is Value Engineering Projects, call us today.  Constant Electric Supply Co. has experience being GREEN and offers hundreds of ways to keep your energy costs low. With using new LED technology for cove lighting , recess cans, and pendants you end up saving you up to 90% of the energy you would normally consume using halogen or even some fluorescents.



  • 1-630-289-1961 Call for Wholesale pricing on all lighting fixtures.
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Our strong commitment to sustainability is demonstrated by our full line of energy saving products under various brands.