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Lamp Keyring
There are two things intruders don't like - loud noise and bright light.
The former makes it difficult for them to hear approaching people, and makes a compelling case for the fitting of internal sirens (sound bombs) in alarm systems. This however is a topic for another day.
The latter means they can be easily seen and is possibly the most effective deterrent. Security lighting can be used in conjunction with CCTV to give better pictures.
Security lighting can be used inside and out, and everything said here applies to either. Remember though, that outside lights must be rated for outdoor use, although there is nothing to stop you using them indoors as well.
Many premises leave lights on all night. If you do this make sure that low energy lighting, such as fluorescent or sodium lighting is used, otherwise there will be large electricity consumption.
PIR Switched Lighting
A PIR or passive infra red detector, switches on when body heat movement is detected. Thus it will detect humans, but also animals such as cats upwards. The most popular form of security lighting has a built in PIR, which switches on the light if some-one approaches after dark. PIRs can commonly be adjusted for 3 things - the light level at which they start working, the time for which they remain on (typically 20 seconds to 10 minutes) and sometimes the sensitivity or range over which they work (typically 4 to 12 metres). They are usually physically adjustable, so that they can be pointed more downwards, to reduce the range, and sideways to give cover over particular areas. They are more sensitive when the person approaches across their detection area, than straight towards them.
When choosing a location, they should be at least 2.5m above ground, so they are not easily tampered with, well away from any heat source, such as a central heating exhaust and their detection area should not include a road at the end of the property.
Many PIRs have an over-ride facility, so that the light can be switched on for up to 8 hours continuously.
Halogen floodlights, ranging from 150 to 500 or sometimes 1000W, are the most common security lights using PIRs, but other types of light fittings are also available.
Low energy bulbs are best avoided, because some do not last long and may reduce the life of the PIR, and they don't reach full brightness immediately, which is desirable in a security light.
Floodlights can cause annoyance to neighbours, if they shine onto their property, especially through windows, so their sighting and adjustment should bear this in mind. They can usually be adjusted independently of the PIR to keep them pointing down away from other peoples' property.
PIR lights should be wired in via a switched fused spur, so that they can be isolated for maintenance, such as changing a bulb.
Dusk to Dawn Lighting
Instead of a PIR, these lights usually have a built in photocell, which switches them on at dusk and they stay on all night until dawn. Because they are on for long periods, most use low energy bulbs. These do not give as powerful lighting as floodlights. Some low energy bulbs have a built in photcell, so they can be put into any fitting that is big enough to take them. If you use these, make sure the photocell is exposed to the light and not obscured by the light fitting, otherwise it will come on during the day.
Ordinary Light Fittings Switched Externally
These include floodlamps without PIRs, and any other form of lighting.
There are various ways these can be switched to turn them into security lights.
1. Using an ordinary light switch to turn them on manually. May be useful for convenience light, but useless if you are not there to turn them on.
2. Using an external PIR. Stand alone PIRs can be used to switch on the light. There will have to be wiring going from light to PIR. This is useful if the light is best sited away from the detection area. Everything said above about PIRs applies here. External PIRs are often better than built in ones. Some have a 360degree detection area, although only a maximum of 180deg. is needed if it is mounted on a wall.
3. Using an external photocell.
4. Using a time switch. The easiest way is to use a plug-in timer. These are both cheap and easy to use. The light is fitted to mains plug, which plugs into the timer. This can be adjusted for the light to go on and off whatever the timer is set to. If the light is outside, the timer must either be inside, or in a waterproof socket box outside.
5. Using a random switching bulb holder. This is mainly used for inside use, and gives outsders the impression that some-one is in the house switching lights.
6. Using a remote key fob. The radio contolled floodlight is switched on remotely using a small key fob transmitter. This can be kept on a key ring and operated from a car, or from, say, a bedroom, to switch on an external floodlight.
Barrie Newton B.Sc. Owner of Rhyl Lightworks Co http://www.thelightworks.net or for information on security lighting http://www.thelightworks.net/index.php?main_page=index&cPath=66_28
Can someone help me choose what to buy and make my room technological.?
Ok i have decided to redesign my bedroom by adding gadgets and installing different things.I want it to look like a 21st century bedroom.
I am going to buy these,
Telescope
surveillance camera
Alarm stickers
Glitter lamps,mini and keyring
Led mini lamp
laser pen etc
What other things do u think i should add.Do u know any cheap detectors that i can buy.U know that can signify me when someone approaches my room or Tv remote jammers.
Cool alarm clocks,walkie talkie watches and also how can i enter my room with finger prints.Is that type of technology on sale.I am just sick and tired of my life,i am a 16 year old girl in high school, so please help me change.
Try black & white city scapes, also maybe space pictures-solar system right next to the telescope. You can set up a camera-even a fako one, outside your room so peoplwe can think that your'e actually recording them when they knock! I really don't know if you can get the kind of lock that opens w/ fingerprints, however, you can lay down a "fingerprint pad' sticker next to your doorknob. About the cheapest detectors are at k-mart, walmart, Lowe's, auto/hardware stores maybe. You might need to rig/put something together.) Bed I would suggest lowering to the ground by putting it on a 5 foot box. My bro just laid his mattress on the floor. Steel chains are beautiful when shiny, maybe as a wall hanging or drapes. They are only 99cents a foot-I have 3 feet I use in a wall hanging for drapes maybe 30 to 40. (20$) Check this out: It has mirrors in the headboard? There are additional links.
how to make a photon orbit using 4 keychain lights
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Streamlight 73001 Nano Light Miniature Keychain LED Flashlight, Black
$3.75 FEATURES Easily attaches to just about anything with pocket clip or key ring: 1 Up to 8 hours run time: 2 Machined aircraft grade aluminum with anodized finish: 3 Uses 4 alkaline button cell batteries included: 4 White LED bulb with 10 lumens: 5 Weatherproof: 6 Includes a non-rotating snap hook for easy one handed operation when atta... |
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Solar-powered LED Flashlight w/ Keychain
$0.01 Imagine a flashlight small enough to attach to your keychain, but with three powerful LED lights, and it never needs batteries! This is the Solar Flashlight Keychain. A small solar panel on the back of the flashlight converts light to energy to power the bright LED lights. No cranking or shaking needed. Even ambient light is enough to keep this tough flashlight shining brightly! On your keychain, ... |
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LRI PWK Photon II LED Keychain Micro-Light, White Beam
$5.30 While space shuttle astronauts have reportedly used Laughing Rabbit photon LED lights in their endeavors, the average consumer will quickly find that there's no need to go into orbit to find uses for one of these. The amount of illumination you get from this extremely compact and lightweight light is truly surprising-and it fits on your keychain. Weighing a mere 5-1/2 grams and small enough to dis... |
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Play Visions Lego Darth Vader Key Light
$2.99 Take on the galaxy with the LEGO Star Wars Darth Vader Flashlight Key Chain! Press the button on Darth Vader's chest to light up the LEGO figure's feet. Key chain features posable arms and light angling legs.Take on the galaxy with the LEGO Star Wars Darth Vader Flashlight Key Chain! Featuring posable arms and light angling legs, each piece is a fully functional light, key chain, and just plain a... |
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LED BULB for SOLITAIRE AAA MAGLITE KEYCHAIN FLASHLIGHT
AAA Solitaire Maglite LED BULB. This LED is the first led replacement bulb suitable for your 1 AAA Solitaire®. It is much Brighter then standard bulb and you can still focus beam 15 Lumens. No disassembly, drilling or modification needed! It installs in seconds! A true "drop-in" replacement. This bulb saves money! Go at least 3 or 4 hours between battery changes, more than 2 times longer than sta... |
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NECA Green Lantern Movie Keychain Light up Lantern
$4.95 The action and adventure of DC Comics' Green Lantern comes to the big screen, with actor Ryan Reynolds in the starring role of Hal Jordan! Now you can add some of the Green Lantern Corps' power to your keys, with this Green Lantern Movie Lantern Light-Up Key Chain! Based on the 'lantern' design of the film, this key chain features a push-button light-up feature.Actual key fob measures approximatel... |
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