Wednesday, October 26, 2011

240V 12V Transformer Power Supplies Explained

!±8± 240V 12V Transformer Power Supplies Explained

The 12v power supply is one of the most common types of power source for consumer electronics that need an external power supply. Logically then, if you have 240v mains voltage and you need a 12v power supply, a 240v 12v transformer (as they are sometimes called) is probably involved. If you specifically want the transformer, I would guess you are either actually looking for a lighting transformer, or you are someone who dabbles in electronics. Most people are really looking for a 12v power supply though. This is also called a 12v adapter, but is is the same thing.

No matter what you are trying to power, you need to know a lot about its exact power requirements. This includes knowing what voltage it needs, how much current it draws (electrical power) and if there are special considerations about the polarity of the power input. This last bit is relevant if the device needs dc voltage - in which case the the internal circuitry will be very sensitive to the polarity of the voltage. If ac voltage is specified, it simply means to circuitry to rectify ac to dc is present inside the device instead of in the external power supply. In principle, ac plugs can be inserted any way you want, but the presence of a ground prong in the plug often prevents this. Electric shavers with two-pin power sockets which are connected straight to mains voltage, have power plugs with no polarity.

Other things to consider before buying 240v 12v transformers include things like fuses. The device you want to power may be protected from overloading by means of an internal fuse. This can sometimes accessed from the back of the enclosure, but often you have to open it to see the fuse. Thankfully, most electronics manufacturers inform you of any fuses, either on a label on the device or in the user manual. Should no fuse be present (one usually is), you could get a 12v adapter with a built in fuse. A 240v to 12v dc transformer often includes a fuse in addition to the rectifying circuitry, and it is a good idea to have a fuse somewhere in the chain.


240V 12V Transformer Power Supplies Explained

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Saturday, October 22, 2011

Samlex America SDC-23 20 Amp 24v DC to 12v DC Converter

!±8±Samlex America SDC-23 20 Amp 24v DC to 12v DC Converter

Brand : Samlex America
Rate :
Price :
Post Date : Oct 23, 2011 00:58:44
Usually ships in 1-2 business days



23 Amp 24V-12V Switch mode DC Converter. Designed for heavy-duty applications.

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Thursday, October 20, 2011

Power Bright PW6000-12 Power Inverter 6000 Watt 12 Volt DC To 110 Volt AC

!±8±Power Bright PW6000-12 Power Inverter 6000 Watt 12 Volt DC To 110 Volt AC

Brand : PowerBright
Rate :
Price : $529.99
Post Date : Oct 21, 2011 00:47:14
Usually ships in 24 hours



PW-6000 Have Power on the Go! A power inverter converters DC battery power into conventional AC power which can run all kinds of personal electronics and mobile office equipment such as Laptops, Gaming Consoles (PS3, XBOX 360) MP3 Players, Cell Phone Chargers, DVD Players and more! Features: -Anodized aluminum case. -Four 3-prong AC receptacle. -Overload indicator. -Built-in cooling fan. -Wireless remote. -LED display- input voltage/output wattage.

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Tuesday, October 18, 2011

Luxury 12V LED and 24V LED Replacement Lamps

!±8± Luxury 12V LED and 24V LED Replacement Lamps

Recent improvements in diode based lighting are producing a warmer light color as opposed to the blue white associated with early LED lamps. This now makes it possible for strip lighting users to slash the cost of linear strip retrofitting with LED replacement bulbs.

When possible, it makes more sense to simply keep the existing lighting strip and to upgrade with LED bulbs. The replacement costs of new lamps are significantly less than the expenses involved with retrofitting entire strip lighting systems, and LED festoons are easy to install provided that the existing linear strip operates on 12VAC or 24VAC current.

LED replacement lamps use less power than incandescent and Xenon festoons, and they produce no harmful UV rays. With only trace signatures of heat, they have become a favorite for retailers that showcase sensitive items in merchandising display cases. A luxury LED replacement bulb will use only 10 percent of the energy required by an incandescent bulb, and thus represents a significant decrease in power costs regardless that quickly return ones initial procurement investment.

Companies seeking to obtain LEEDS certification can also lower their watts per square foot calculation by replacing incandescent and Xenon festoon lamps with custom, luxury LEDs. These lamps snap easily into place and do not require a technician to install. Luxury LED replacement lamps offer a versatile and advantages strip lighting upgrade product with a key design feature unique to the advanced engineering of the lamp. LED bulbs are generally DC powered light sources that require direct current inverters to operate on AC wiring systems.

This often complicates what would otherwise be a simple upgrade with additional equipment demands that cost larger sums of money and present design challenges with bulky equipment that is hard to conceal. This is not so with the latest generation of luxury LED lights. One specialty lighting manufacturer, for example, makes LED replacement energy saving lamps to work on existing AC linear strips.

These lamps are specified with a higher quality LED replacement bulb than the type normally found in standard lamps. Many of the lower grade diodes made by other companies produce dimmer levels of light that sacrifice quality to achieve cost savings. On the other hand, these new proprietary festoons use a much higher grade lamp with an output range of 42 lumens on the low end to 50 lumens on the high end. This is 5 times higher than any lamp designed with LED replacement bulbs and perfect for 12 volt or 24 volt LED home lighting.

The superior advantages delivered by these new bulb replacements are primarily due to the unique engineering used to design festoon LED lamps. Each unit consists of six diodes placed in close proximity to one another that generate a combined, radiant field of high intensity, low voltage light.

These LEDs operate at minimal amperage levels and are specifically intended to ultimately replace 5 to 7 watt incandescent and Xenon festoons altogether. Because they do not require DC inverters, and because they replace larger transformers and dimmers with much smaller equivalents, new LED bulb replacements constitute a synthesis of high intensity lighting and low profile design.

At only 0.6 watts, a new, luxury lighting, 2700K LED festoon lamp generates the same luminosity as a 7 watt festoon while at the same time reducing power consumption by 400 percent! This makes this new generation of bulbs the preferred LED replacement favored by designers seeking to maximize aesthetics by minimizing fixture visibility.

At 50,000 average hours LED replacements reduce lamping cycles over incandescent festoon lamps by 500 percent and xenon festoon lamps by 200 percent. It is not uncommon for our LED strip lighting lamps to perform consistently at optimal levels for up to ten years.


Luxury 12V LED and 24V LED Replacement Lamps

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