wiring a walk in closet?

If the wall outlets are wired from the underside of the floor, there should be a place where a wire is going up into the first outlet on the circuit. Remove the plate and receptacle from that outlet and wire into that.

One light isn't going to add much of a load to a circuit and there is usually a bit of excess capacity anyway.

Splicing a plug type cord to the solid wire of normal household supply wire isn't a good idea. Stranded wire and solid wire doesn't really work that well even though it is used on dimmer switches and other devices. Besides it looks ridiculous and wouldn't pass inspection. Do it the right way and save the outlet box receptacle for something else.

Or you can add a junction box at the end of the wire. Then run another wire to the circuit box. Splice the ends of the two wires together and attach a cover. You can use Wire Nuts but T&B crimp connectors and caps are better. Leave about 10" of wire stripped back inside the box in case you want to cut off the crimps to wire something else in later. ,

NO!!!

Cords, and other temporary wiring must NOT be connected to permanent wiring. This is a fire hazard.

Sounds like the wiring was installed for a light in the walk-in during the rough-in stage of building the house and was missed when the final connections were done. This is more common than you would think.

When you say under the house, do you mean in the basement or does the house have only a crawl space and no basement.

If it is only a crawl space, you could install some lights in the crawlspace and protect them with a GFCI.

Wire a switch for the lights at the entrance to the crawl space and also install one near enough so you can connect the cable from the closet into the junction box.

There are specific ways to connect this correctly.

Best to hire a reputable qualified electrician.

Read the following:

==============================================

Selecting contractors:

1/ Look up local contractors first. work out from the closest to your location. If someone you trust has had work done

similar to yours, ask them about the contractor they used. If they were completely satisfied with their

contractor(s), ask for their telephone number.

2/ Select at least 5 your are interested

3/ Do a google/yahoo search on each of the contractors you are interested in; look for praises (check who is writing the praises to see if they have any connection to

the contractor <scam artists and coffident persons often work in groups> google/yahoo search the people giving the praise or references)

4/ When you are satisfied with at least 3 contractors per job, have them give you written estimates with details of work

to be done, terms, guarantee(s), cost of extras (how much do they charge if they find something not covered by the contract), paymant schedules if necessary and

whatever else you can think of to protect yourself.

5/ If the contractor tries to pressure you into signing the contract immediately with a high deposit (more than 15% - deposits over 10% normally are not paid untill material is delivered and left at your site) reject that contractor. Be careful, high pressure can be someone who sounds very convincing, but has

many reasons why you should sign on the dotted line NOW.

6/ It is always good to have another adult with you when a contractor inspects the work to be done.

7/ If you do not get at least 3 written estimates signed by the contractor - not you (do not sign yet) , go back to 1. repeat until you get written estimates signed by the contractor - not you (do not sign yet).

Read the estimates over with some who has some knowledge of the work that has to be done.

This may take longer than you thought; do not rush into it. Research, resaerch research, helps.

When you are ready choose by being informed.

Good Luck

No it is against the electrical codes use some kind of plug in light instead.