The light bulb is a simple device that creates an electrical signal from a bulb.
There are two types of bulbs, single and dual.
Single bulbs are low-powered and use one electrical power source.
Dual bulbs are more efficient, but emit a much smaller amount of light.
The cheapest, most commonly used light bulb emits less light than a high-wearing lamp.
The light in a low-power light bulb (like the one pictured) has a high efficiency.
The same light from a high wattage light bulb will have a low efficiency.
You can find a good source on the internet that has a lot of information on the differences between low- and high-efficiency light bulbs.
However, it is often hard to compare the efficiency of different types of lamps and whether the efficiency difference between the two types is significant.
If you have a question about a specific light bulb, please email us.