Electical Contractor

Pulse-start metal halide ballast and lamp systems bring a wealth of benefits to users of high-intensity discharge (HID) lighting. Prior to the development of pulse-start systems, metal halide lighting delivered white light at the cost of operational inefficiencies.

(Please refer to pages 78-82 of Electrical Contractor magazine for the graphs, which Ian Lewin refers to in his lighting column).

As an electrical contractor, you may feel like you’re walking a tightrope when selecting and installing lighting systems for modern retail stores. You want to provide retailers’ desired look and feel while meeting their requirements for long life and operating efficiency within budget.

Glass fiber optics lighting is composed of three compatible parts. First-time users should consult with a qualified supplier to create a bill of materials. A light source: (called an illuminator or projector) is conveniently located in a readily accessible place for relamping.

True story: A few weeks ago I went to a major retail store to buy a new television. The model I liked was on sale and had all the features I wanted. Or so I thought.

The next time you drive by an outdoor sports field, notice that each floodlight has a unique combination of rotation and tilt angles.

Here’s something lots of good salespeople know: In order to be truly persuasive, you’ve got to put the benefits out front, and forcefully show your prospects what your proposal can do for them.

Few things become less complicated over time. Lighting is no exception. More and more “other people” have something to say about the lighting you put in, and it is not enough to know the National Electrical Code (NEC) by chapter and verse.

Fire damaged a three-story, single-family frame residence in New Jersey in 1985. Certain physical and circumstantial evidence suggested the possibility that lightning may have caused the fire.