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Edited on Mon Mar-23-09 12:55 PM by Wash. state Desk Jet
The only difference is the plug,which by the way used to cost more. A basic two bulb 4 foot shop light runs about 10 or 15 bucks. The ballasts will have much to do with cost difference. Electronic or magnetic. Yer electronic quick starts are more costly. When you remove the center cover you will find where the plug is wired in. All simple. The only difference between the hard wire and the plug in type is the plug. The wiring inside the fixture is exactly the same.In other words pre wired the exact same way. To plug or power, black wire /load /line ,white wire neutral/return and green/ground. The rest of those wires are to ballasts and light inserts.
You will find knock outs on both ends of yer shop lights fer wiring those lights up in series. That's fer running yer 12/2 with ground or 14/2 with ground from light to light in series.
Yer bulbs might be 23 watts per on the draw. That is very little compared to the standard 60 watt or more. As you know the fluorescent 23 watt puts out as much light as a 60 watt bulb. So cheaper to operate.
OK so, if you were to buy the type with the plug, to do the series hook up you simply remove the plug and replace with yer 12/2 or 14/2 with ground ,stringing yer insulated wire from light to light. For out of the wall wiring if yer were to go in code yer would buy the shielded wiring, or use conduit.
Adding a switch is fairly easy to do. From the terminals on the near by plug, if it's a end of a series run ,you use the non used screws . Gold power or black wire and silver screw white /neutral and ground to the bottom screw. To switch one side to power. You wire the black wire to one terminal .Ok, so stop there so you can run yer wire to the light. Two sepreate runs though connected. Than install yer wire from there to light fixture. At the light fixture in yer new junction box you have white black and ground. Running back to the switch you hook up the other black wire to the switch. Than you connect the two white wires ,using yer electrical twist caps. Red is the right color on the caps. You can buy a foot or so of ground wire with green insulation . What yer do is take yer lineman pliers and twist together the ground wires,the green ground to switch,than push the ground wire to the back of the junction box, Push yer white wires back and fasten yer switch in with the screws what come with the switch. The green wire is fer somebody that does not do much wiring. The object is to keep the ground wire from making contact with the terminals on the switch or plug.
a basic $15.00 how to book house wiring will demonstrate that or all that in step by step illustrated pictures and easy to read instructions.
It's like anything else you do, it is always better to know than it is to think that you know. Taking short cuts invites accidents.It's one thing to be thrifty, it is something very different to be cheap stupid.
Good luck with yer project ,and let there be light.
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