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  1. Lighting Design
    Please Help. I want to swap some 8' Fluorescent fixtures with LEDs. Would 4' LEDs with the same Lumen output as the 8' Fluorescent supply comparable lighting? Thanks
  2. General Electrical Discussion
    Swapping out a commercial office building full of 2x4 lights in drop ceiling to new 2x4 LED fixtures. Some of these lights are on an emergency circuit and contain two ballasts in the light. My LED fixtures I’m replacing don’t have ballasts obviously. One of the ballasts on the previous light...
  3. Residential Electrical Forum
    I'm admittedly a novice when it comes to electrical work, but I'm equipped enough to replace the basics. I pulled out this switch to replace and got completely lost. It looks like both the dimmer and the single pole switch are for the same light. The switch goes to kitchen lights that are...
  4. Lighting Design
    Hi everyone, I am an American career Electrician now living and working in Czech Republic. I am in control of lighting for the company I now work with, however, all my familiar lighting companies don't exist here. I am wondering if anyone has recommendations for the best lighting suppliers in...
  5. General Electrical Discussion
    There are 4 lights total, and when I turn on the switch, none of the lights come on. I have checked with a multimeter to confirm that there is 120VAC between the line and ground at the switch. I have also used a voltage checker to confirm that all four lighting fixtures have voltage when the...
  6. Lighting Design
    Hey everyone, I bought this 3 light smart switch and having some trouble installing it. I unscrewed one of the existing 3 light switches and it has a total of 7 cables, 2 per light + neutral (see below) Also to note, 2 black cables are tied together by the blue tape and attached to the 3...
  7. Lighting Design
    Problem: I have a Cree fixture that I am constantly replacing in stores and the driver is built into the fixture and has no specs to it. Light engines always test okay, but the drivers fail and I then have to replace the fixture which is expensive in comparison to all the fixtures I can replace...
  8. New Member Introductions
    Hello everyone! I work at a lighting distributor company. Have been in electrical field for about 10 years now and hold a PE license in MA. Worked in commercial, healthcare, residential, and educational fields. I’ve been reading this forum from time to time and learned a lot so recently...
  9. Lighting Design
    I know of RAB's lightcloud system, but are there other lighting control systems you have heard of that are good contenders or alternatives to this? I know companies like Lutron have their own version and LG Lighting has something with ZigBee wireless capability. Looking for feedback on...
  10. New Member Introductions
    I just wanted to formally introduce myself, my name is Buddy, I work for Innovative Lighting as a lighting consultant for Iowa's only LED lighting manufacturer. I did not join this forum to advertise Innovative Lighting products, I joined to help people with any lighting questions/concerns that...
  11. Lighting Design
    hallway is 100Ft 20 lights 5 Occupancy sensors Is there a way I can connect all 20 lights to all come on from all 5 occupancy sensor located at different locations? or do i have to split up 4 lights per sensor?
  12. Lighting Design
    Hello I am the head electrician of a private school and we are building a new building. The contracted electrician has put in a change order to use a Acuity nLight lighting control over a Watt Stopper brand. I have never used the nLight system and am curious if anyone has. Pros / Cons and...
  13. Lighting Design
    I'm looking to design and make my own touch lamp. I can only find circuitry that allows me to touch on and touch off. I want the lamp to only be on when I'm holding it. As though my hand completes the circuit, and without my hand, it's off. Anyone have any ideas on this, please? Thanks for...
  14. Lighting Design
    I've done a lot of commercial electrical work, but never in a supermarket. Could someone tell me if the typical supermarket lighting voltage is 120V or 277V? Thanks.
  15. Lighting Design
    I don't know how often do yall do industrial lighting project. When you go out there looking for LED High Bay light for a project , What is a price range that you could accept? And what brands you'd like to choose? Beers on me. Thank you.
  16. Business, Marketing, and Sales
    We are in LED lighting business. Especially High-bay lights. We have years of experience working in Europe Market. Now we are getting our certification and trying to open an office in Houston Texas. Any thoughts?
  17. Lighting Design
    I'm an audio/video guy with a lot of wiring experience, including basic electrical, but I have no clue if I'm using the right terms in the Title. Here's the situation. I want to add a motion sensor light switch to both sides of my garage door. (It's pretty wide and two lights are helpful.)...
  18. NEC Code Forum
    I am currently working through Tom Henry's "Calculations..." book for the 2014 NEC. At least a couple of place it uses a factor of 4.5 va / sq. ft. for lighting and receptacle circuits (non-continuous). I cannot find this in the code. Does anyone know where is this "4.5 va" term is in the NEC...
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