About Lamps

NFL asked:


I recently just purchased a desk lamp and put in a CFL bulb of 13 watts. After doing this, I noticed the box saying to use an 11 watt max for CFL bulbs. Do I need to run over to the store and get another bulb, or am I probably fine?
Thanks all for your responses. To answer Guru’s question, it takes both regular and CFL. It says the max for regular is 40 watts and the max for CFL is 11.

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Craig Chambers asked:


Are we communicating? That might be the question that comes to mind when ordering new rawhide lamp shades or replacement lamp shades. It can be very frustrating because different people measure lampshades differently.

The whole matter is complicated by telephone conversations and internet ordering. If you know how you should measure a shade to get the proper fit and also communicate the correct size, you will avoid problems and receive the lamp shade you are expecting.

It doesn’t matter if the shade is made of rawhide or not, there are a few tips you should know to correctly measure and order a shade and also terminology that will help you insure that the person receiving your order is on the same track. We create custom rawhide lamp shades for rustic western lamps and southwest home decorating. Because we encounter this issue all the time we have some tips that we use to insure the correct look for a lamp, even without seeing the lamp ourselves.

How to measure:

1. You will need to have three key measurements, bottom diameter, top diameter and height. The bottom diameter is the measurement across the bottom opening of the lamp shade. The top diameter is the distance across the top opening of the shade. The height of a lampshade should be measured straight up and down vertically, not along the slant.

This is where the confusion begins. When communicating the measurements different individuals and stores will place the three dimensions in different order, it’s not standard, so be careful that you are not confusing the bottom and height measurements for example.

2. The height should be measured straight up and down, but some will measure along the slant. These two measurements can be quite different and cause the finished shade to be incorrect if confused. Always clarify how the height is measured. We have found that many people who measure the slant of the shade refer to it as the shade’s length rather than height.

Height Measuring Tip:

The reason you should measure height up and down, vertically, is that the height measurement of your lamp from bulb socket base to top of harp is probably the minimum vertical height you will want to cover the electrical components with the shade

Height Adjustment Tip:

If you are considering a stock replacement shade, your lamp’s overall height and look can be adjusted. The wire harp that holds the shade over the bulb is interchangeable. That is great news if a standard shade is say an inch to short. Rather than having to order a custom shade you could change the harp causing the shade to sit lower on the lamp to give you the desired look.

Shade Mounting Type:

A standard shade mount has a center bar across the top with a hole for the harp mount or a washer centered by three supports that attach to the top rim of the shade. Both allow the shade to be secured to the harp. Some smaller lamps and chandeliers don’t use a harp but instead use a bulb clip to attach directly to the bulb. A bulb clip is simply two wire loops that are attached to the shade’s center bar and grip the bulb.

An bulb clip adapter can be added to any standard shade to allow it to be placed over the bulb. Chandelier lamp shades usually have built-in bulb clips made for the small flame or candelabra shaped bulbs. Shades used as hanging lamps may use an uno mount which has a center ring large enough for the bulb socket to pass through. These also appear on some table lamps. You can use a bulb clip on a replacement shade instead of an uno mount.

Try putting these simple tips to work on your next rawhide lamp shade or replacement lampshade project and you will be sure to measure, order and receive the right size lamp shade the first time.



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Article Manager asked:


The first lamp was invented and used in the 70,000 BC and the lamp of that period was not made from bronze or metal instead it was made from hollow rocks and shells. Hollow rocks were filled with moss and other natural substances and then soaked in animal fat, which acts as an oil for the lamp. With the advent of bronze and copper age, human started to make lamp of various shapes. In the 7th century BC, the Greeks began making lamps of terra cotta to replace handheld torches. The word lamp is derived from the Greek word lampas, which means torch.

A major improvement in lamp design was noticed in the 18th century when the central burner was invented. The fuel of the lamp was enclosed in a metal chamber and it has an adjustable metal tube to control the intensity of the light and the fuel used in the lamp for burning. Small chimneys glasses were added to lamps to both protect the flame and control the flow of air to the flame.

Since the inception of lamp in 70,000 BC various kind of fuels such as beeswax, olive oil, animal fat, fish oil, whale oil etc. have been used to light the lamp. With the advent of kerosene that popularity of the lamp increased and it was commonly been used for lighting purpose. Kerosene oil was first introduced in Germany in 1853. During this period only natural gas and coal was also been used as lamp fuel.

Lamps have come a long way from coal gas to electricity. Sir Humphrey Davy of England, in 1801 invented the electric carbon arc lamp, which was the first of its kind. This lamp work on the simple principle and it includes two carbon rods, which was hooked to an electrical source. Carbon rods were kept at a distance from each other so that electrical current could flow through the arc and thus vaporize carbon to create white lighting. In the 1870’s, the unthinkable happened with Thomas Edison inventing the first electric incandescent lamp. Since then incandescent lamps were used for lighting purposes in homes till about the early 20th century.

Today proper lighting has become a key element of interior designing. Lighting may be affected to a great extent due to factors like lamp burnout, dirt accumulation on fixtures and ageing of lamps. Lighting appliances and lamps are an integral part of any home decor and one should make conscious efforts to efficiently use the electrical power in one’s house. One should make maximum use of natural lights in his rooms and should use quartz halogen lighting for outdoor illumination. One should follow the manufacturer’s instructions while installing outdoor lighting.



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