These are some of the uses of spotlights. If you are looking to buy a spotlight, floodlight or other LED light bulbs, you can visit www.ledlightexpert.com. There is an extensive variety of such lights available and that too at very affordable prices.

Flood lights get all the attention when it comes to security.  Motion Sensor Flood Lights are extremely popular but spotlights are also being used for security purposes. There are motion sensor spotlights that can be used to detect any sort of suspicious movement in a narrow area such as a walkway and really scare an intruder.

A spotlight points the light at a specific point and creates a beam that throws the light at one point. The beam angle of spotlight varies from 12 to 60 degrees. LED Spotlights are the opposite of LED flood lights. A floodlight is a wide angle light used to illuminate larger spaces such as a sports ground, a stage or exterior of a building. They are also used to light up a billboard. Floodlights have a wider beam angle and they range from 65 to 135 degrees.  Choosing the right beam angle is always important, our high bay lights have beam angles from 60 to 120 for example depending on the choice.

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Male (left) and female (right) mantis shrimps, showing a clear difference in polarizing signals. This method of communication -- visible only to animals that can see polarized light -- may be important for sex. Click image for more information and larger view.

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These four pictures show the Great Barrier Reef taken through a polarizing filter, which has been held in front of the camera horizontally, vertically, and at 45º. Click image for further detail and larger view.

Spotlight and floodlight are two different types of lights. They have different features and uses and cannot be used as replacements of either of the two.

In recent years, scientists have been surprised to discover how many animals rely on polarization vision and the variety of possible uses for it. These include navigation (using polarized patterns in the sky), finding food, communicating with mates and rivals, and camouflage breaking.

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For many ocean animals, sensing polarization may be even more important than sensing color. One possible use for polarization in the ocean (and elsewhere) is signaling: communicating with neighbors, rivals, and potential partners. Recent discoveries have shown that stomatopods, a sort of shrimp found on reefs around the world, use special body areas to communicate with polarized light. Only with polarizing filters can human eyes see these special areas.

Spotlights, as we have discussed, have a beam angle of 12 to 60 degrees. They can be used to light up landscapes and places having a downward or upward slope. They can also be used in corridors. Choose LED light bulbs for key places around your property to make it warm and inviting.

Spotlights can also be used flashlights.  Flashlights can come in a variety of angles, but typically are wider angle.  Choosing a narrow beam and they are able to produce longer beams of light as compared to regular flashlights. The light would projected at a longer distance so that you can look ahead.

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The first thing to realize (and wearing a pair of polarized sunglasses can help with this) is that polarized light is prevalent in the world. It is reflected off shiny surfaces, such as water and leaves, in hazy environments, and even produced by animals themselves.

We all have pictures on the walls of our homes and some deserve to stand out.  Typically these do not have a special light and as a result, the lights are not able to make the pictures or frames look prominent. Spotlights are the ideal solution to illuminate the pictures or frames completely.   Add a few LED spotlights by themselves or on tracks to create ambiance and highlight create works or art or pictures.

Photographs of a mantis shrimp taken through polarizing filters rotated to be vertical (top) and horizontal (bottom). Note the color difference on the animal's paddles. Click image for more information and larger view.

Evolutionary Sunglasses Not surprisingly, animals "invented" the same technology, only millions of years ago and through processes such as evolution. (This is often the case, when it comes to nature.) Many animals -- such as fish, insects, birds, crabs, and even shrimps -- have wonderfully well-tuned polarization vision to help them solve problems and perform their daily tasks. Scientists are currently studying these tasks and the ways in which "nature's technology" solves these problems.

Little is known about this "extrasensory" (to borrow a human term) sense; a world of discovery awaits. We need only to look around. There will be plenty of exciting things to find. Several clues suggest that many deep-sea animals use polarized light, and polarization vision more than color. The Johnson-Sea-Link submersibles will help us follow these leads and decode the secret mysteries of the deep. Every time we go down we find something new.

Justin Marshall Vision Touch and Hearing Research Centre QBI University of Queensland, Australia Tom Cronin Department of Biological Sciences University of Maryland/Baltimore County Sönke Johnsen Assistant Professor Duke University People don't think much about polarized light. But when they reach for a pair of sunglasses on a boat or in a car to reduce water glare, they're reaching for a polarized filter. In these and other situations, having a polarized filter in front of the eye can make objects that are otherwise difficult to see more apparent. Evolutionary Sunglasses Not surprisingly, animals "invented" the same technology, only millions of years ago and through processes such as evolution. (This is often the case, when it comes to nature.) Many animals -- such as fish, insects, birds, crabs, and even shrimps -- have wonderfully well-tuned polarization vision to help them solve problems and perform their daily tasks. Scientists are currently studying these tasks and the ways in which "nature's technology" solves these problems. Photographs of a mantis shrimp taken through polarizing filters rotated to be vertical (top) and horizontal (bottom). Note the color difference on the animal's paddles. Click image for more information and larger view. The first thing to realize (and wearing a pair of polarized sunglasses can help with this) is that polarized light is prevalent in the world. It is reflected off shiny surfaces, such as water and leaves, in hazy environments, and even produced by animals themselves. In recent years, scientists have been surprised to discover how many animals rely on polarization vision and the variety of possible uses for it. These include navigation (using polarized patterns in the sky), finding food, communicating with mates and rivals, and camouflage breaking. Polarization in the Ocean A fair bit of work has examined polarization vision (particularly in insects on land), but less attention has focused on the oceans and other aquatic environments. Using the Johnson-Sea-Link submersibles, the Operation Deep Scope team will study the type of polarized light found on the dive sites. We'll also look at the animals that live there to see if they have "secrets," such as those seen in the mantis shrimps.

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Equipped with polarizing filters, cameras have photographed mantis shrimps and revealed areas of the body that are thought to be used for "secret communication." They are visible only to animals that can see polarized light, and stomatopods are among the best in the animal kingdom. What are these red- colored, polarized areas used for?

No party is complete without lights. Spotlights can fill colors to a party or a celebration. The ability of spotlights to produce a longer beam can be utilized as a dancing light. You can make the spotlights move on purpose and make it feel like that the lights are participating in your festivities and dancing along with you.

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Not surprisingly, animals "invented" the same technology, only millions of years ago and through processes such as evolution. (This is often the case, when it comes to nature.) Many animals -- such as fish, insects, birds, crabs, and even shrimps -- have wonderfully well-tuned polarization vision to help them solve problems and perform their daily tasks. Scientists are currently studying these tasks and the ways in which "nature's technology" solves these problems.

The images give us a clue. The photographs on the right reveal clear differences when the filter is changed from a vertical orientation to a horizontal one. This means the male has the polarizing signal, while the female does not. The nature of the signal, therefore, may have something to do with sex.