Measure a lamp's harp from the top of the harp to the bottom of the bulb socket. For the best fit, match the harp measurement with the measurement of a replacement shade. More »

Before purchasing a new lamp shade for a wall lamp, measure the top and bottom diameters, the vertical slant and vertical height of the old shade. Note whether the lamp has an uno, clip-on or spider-with-harp fitting to ... More »

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Measure a baseball glove by extending a flexible tape measure from the top of the index finger to the bottom of the heel while making sure the tape measure touches the glove at all times. Both field and first base gloves... More »

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To rewire a lamp, remove the lamp, cover and socket, then remove the old cords and fix the new ones. Use a folded towel, a screw driver, electrical tape, wire cutters, strippers and a new lamp cord to accomplish this tas... More »

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How you replace a lamp switch depends on several factors including the switch's location, and whether the socket is one piece of plastic or brass. The brass socket switch offers the greatest number of options when replac... More »

A common method to get a stuck light bulb to loosen without damaging it or the socket is to use duct tape to create two handles on either side of the bulb and then twist them counterclockwise. Before attempting to remove... More »

Light ballasts work by illuminating bulb chambers filled with gas and regulating the current flow of the lamp. Ballast controls use either simple fixed resistors or more complex control systems. More »

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