Thursday, September 30, 2010

LCD Projector Lamps

One of the few LCD projector parts that can be replaced is the projector lamp. LCD projector lamps vary by model, so selection usually depends on the manufacturing company and types such as Incandescent, Compact Fluorescent, Halogen, and HID such as Metal halide and Low/High Pressure Sodium, 3M Projector, Full Spectrum, and Ballasts, to name a few.

The total lamp life is the expected operating time of the projector lamp, which is expressed in terms of hours. Most LCD projectors use a metal halide source with a lamp life of 750 to 4,000 hours or more. Lamp life is not a very useful measurement, since they gradually grow dimmer without burning out and will continue to function even if they are too dim to be considered usable. So the term "peak lamp life" - the time the lamp will last at eighty to ninety percent of total brightness - is commonly used by manufacturers.

In contrast to metal halide lamps that burn with a very white light, halogen lamps burn with a yellowish light, at a steady rate, and have a consistent brightness throughout lamp life; but they only last approximately seventy hours per bulb. Therefore, they are also less expensive.

LCD projector lamps last the longest when the LCD projector is operated in "economy mode," frequently powered down for cool-down periods, and operated in a clean, fairly dust-free environment. Projectors that are subjected to constant use have the highest probability of lamp failure before the end of the rated hours.

LCD Projectors provides detailed information on LCD Projectors, LCD Projector Rentals, LCD Projector Lamps, LCD Video Projectors and more. LCD Projectors is affiliated with Cheap LCD TVs.

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Monday, September 20, 2010

Tips For Buying Genuine Sanyo Projector Lamps

For a long time, projector owners had no choice but to buy replacement Sanyo projector lamps from the manufacturer via their high street retailer, or by post. This was a slow and expensive exercise. Also, there were a lot of Sanyo projector bulbs to choose from, meaning only the most popular models were kept in stock. You might have to wait for weeks until your lamp came in.

Two things have happened recently to change this. The first was the arrival of online stores. These are usually free from the confinements of storage depots and warehouses, and can order Sanyo projector lamps - plus numerous other brands - direct from the wholesaler. The second was the rise in manufacturers supplying genuine, quality alternatives to Sanyo's own lamps. These are made to the same high standards as the originals, and in fact are often purchased from the same OEM.

OEM means original equipment manufacturer. Owing to the highly specialised nature of the product, there are only a handful of faculties making projector lamps across the globe. Each will supply a number of companies, such as Sanyo, Toshiba, Sony etc, working from the blueprints supplied by those companies. They also supply lamps to o.

These products are not fakes. They are identical to the manufacturer's originals in everything but name. Often, the same bulbs are used. Otherwise, a trusted name such as Osram or Phillips manufactures them. There are two types of Sanyo lamp: one is heavily marketed and boasts media-winning packaging. The other comes in a plain wrapper without the frills. But either way, inside the box is a Sanyo-quality product.

So, why are projector lamps so special? They are sold as an integrated unit, comprising a number of delicate and specialised components. The key to all this is an ARC tube filled with mercury vapour at very high pressure. This is ignited and then maintained by a complicated system of electrical ballasts, designed to give optimum light without risk of the bulb overheating or exploding. Pressurisation of the bulb and calibration of the ballasts is subject to intense quality control in both Sanyo original, and alternative brand lamps.

The one thing you must be sure of, when looking for value Sanyo lamps online, is to go to a supplier selling both branded originals and alternative replacements. These suppliers are authorised dealers for Sanyo (although always check) and will never knowingly sell fake, badly manufactured bulbs. Avoid any site that is selling so-called Sanyo projector lamps for ridiculously low prices. Making projector lamps is a precise and exact science; thus there has to be a "cut off point" price-wise.

Be particularly wary of very low cost "manufacturer's originals" on sites not offering an alternative. They will tell you that, with prices this low, why would you want to buy Sanyo projector lamps from anyone but Sanyo themselves? The truth is they are not from the OEM that supplies Sanyo projector lamps. They most certainly are not manufacturer's originals. At best, they are badly put together reconditioned items that are potentially dangerous to both you and your projector.

The author James Kean represents JP-UK, a specialist UK supplier of projector lamps and bulbs as well as ink toners and cartridges. For further information, follow the link for projector lamps and find out more.

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Friday, September 10, 2010

Buying Genuine Epson Projector Lamps Online

Epson is one of a number of projector brands for which it is possible to buy low-cost projector lamps online. Gone are the days of ordering Epson projector lamps from under-stocked retail stores, or ordering by post and telephone and having to wait for days. Now, you can log straight on to an internet store and pick from hundreds of products - usually, with next day delivery. Such stores significantly undercut retail store prices, since they don't have the overheads that the retail stores do.

There are also companies that specialise in supplying projector bulbs of most brand types, including Epson projector bulbs, and many of these companies deal exclusively online - cutting their costs still further and allowing even higher savings. They pare marketing and packaging costs down to the bone - passing the savings on to the consumer. Of course, if you choose to buy alternative projector lamps rather than the originals, you should be careful that their lamps are not dangerous fakes. Genuine Epson projector lamps are sourced from the OEMs (original equipment manufacturers).

People often ask: What's the difference between Epson projector lamps and Epson projector bulbs? The answer is nothing - but they are different to normal bulbs. Replacing a projector bulb isn't just a matter of popping a new one in the socket, like a light bulb. The key component is an ARC light (the same sort used in football stadiums). This is filled with mercury vapour at extremely high pressure - a dangerous combination. The light is ignited by an electric spark and is then maintained at a lower voltage.

Mercury vapour bulbs are complex pieces of technology, with a variety of electrical components. The most important of these are ballasts which, after the initial arc has been fired, control the quantity of current being fed through the bulb. The bulb may also contain a starter, a third electrode and a thermal switch.

The vapour pressure has to be exact, and the ballasts calibrated very precisely, to ensure optimum safety and efficiency. Mercury vapour bulbs are fragile and easily broken, meaning there's danger from both flying glass and escaped mercury. It's also easy to damage the lamp and/or projector if you try to replace the ARC bulb yourself. For this reason, projector lamps are created as an integral unit, the bulb sealed behind a reflector which protects the user from heat, mercury and UV radiation (the heat inside Epson projector bulbs exceeds that of the sun!)

Unfortunately, there are unscrupulous online retailers selling poor quality fakes. Often branded to look like the manufacturer's original, they are usually recons, put together in sweatshops well away from the strict quality controls that Epson and their OEMs insist upon. So be very wary of online stores selling unfeasibly cheap Epson projector lamps. As you can see, manufacture is a highly specialised process, labour intensive and on a small scale.

If you're on a budget, use an online store that supplies original Epson projector lamps - and is an authorised Epson supplier.

The author James Kean represents JP-UK, a specialist UK supplier of projector lamps and bulbs as well as ink toners and cartridges. For further information, follow the link for projector lamps and find out more.

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Saturday, September 4, 2010

Digital Projector Lamps - Tips To Maximize The Life Of Your Digital Projector Lamp

Digital projectors are a great addition to any home or office and the advantages of having one don't need to be explained here. However the joys of having the big screen image, hooked up to your surround sound in the lounge are all too often shattered with the globe, often remaining that way for several months until you can afford a new one.

Digital projector lamps are a powerful light source used to transport the image from the projector to the screen. While very strong for their designed purpose, omitting light, the same cannot be said about their durability, a point of contention with many a disgruntled digital projector owner.

Although digital projector lamps are rated with an estimated life in hours, typically a lamp will peter out after 2,000 to 3,000 hours of use, many fall short of the indicated life. There are number of reasons for this. Like with all manufactured products there will be faults. While most projector lamps come with warranties ranging from 30 days to 6 months, research shows that many projector bulbs blow after the expiration of the warranty but well before the indicated lamp life. I own a Hitachi LCD projector and have experienced this problem first hand Not only did my lamp blow after only 1000 hours use but it also exploded inside the projector. After learning the hard way myself here are a few tips to avoiding similar problems, while maximizing the protection of, and hence, life of, your expensive projector lamp.

Always check and clean your air filter before use, especially if it has been stored. Dust build up in the air filter pad can cause lamp cooling problems resulting in overheating, lamp explosion and in some cases fire.

Never move your projector during use. When the lamp is hot it is most vulnerable. A slight jolt could easily cause the lamp to blow.

Always allow the lamp to fully complete its cooling cycle before turning your digital projector off.

Ask your dealer to clean the inside of your projector once a year to avoid excessive dust builds up.

For more helpful advice about choosing the right digital projector for your needs or for more information about digital projector lamps and accessories click here [].

Chris Hopkins is an event specialist with several years experience using digital projectors both in the commercial environment for seminars, conferences and concerts and in the home for personal viewing pleasure. Chris manages [], a website providing useful tips and information to help you choose the perfect digital projector.

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