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The concerns and dangers with refurbishing a projector lamp bulb

Projector bulb refurbishment is the practice of removing an old, used projector bulb from a projector lamp module's plastic housing and replacing it with a new projector bulb. This projector bulb refurbishment process is not recommended by projector manufacturers, nor is it recommended by Projector Lamp Experts Europe. Please note that Projector Lamp Experts Europe does not sell any refurbished or rebulbed LCD or DLP projector lamps or beamer projector lamps on the online Projector Lamp Experts Europe store, nor does it offer any projector lamp refurbishment services. This includes the sale or supply of "bare projector lamp bulbs" which are those projector bulbs sold without a plastic lamp housing module.

Since the safety and product quality of beamer projector lamps that have been rebulbed or refurbished has been called into question, Projector Lamp Experts Europe has taken the decision not to put its customers or their presentation equipment at risk by selling these kinds of replacement projector lamp products. A summary of the reasons why the practice of rebulbing or refurbishing projector lamp bulbs is not a recommended practice is outlined in the sections below.

A note on suppliers of bare bulb projector lamp products

It is important to remember that since the original manufacturers of LCD or DLP projectors are usually not in favour of their replacement projector lamp modules being sold minus the plastic lamp housing (or lamp cage), this means that if a projector lamp supplier offers replacement beamer lamps without the plastic lamp housing, the authenticity of ANY replacement beamer lamp (whether the lamp has lamp housing or not) being supplied by this company could be called into question. When you are purchasing a new LCD or DLP beamer lamp for your projector, remember that you should always make sure that you check whether or not the replacement projector lamp you are about to buy is an original manufacturer lamp with a plastic lamp housing unit, or not.

damaged projector lamp housing

Bare projector bulbs and lamp warranty issues

When a projector lamp manufacturing company assembles a new beamer lamp module, the component parts that make up the lamp are put together in a very specific and precise assembly process. These replacement projector lamp modules are never designed to be broken up into their component parts and then rebulbed or refurbished with a projector bulb made by a third party manufacturer. If a beamer projector lamp module is taken part, it can be very difficult to put it back together again. Often even trained projector lamp specialists can have problems reassembling the lamp unit. If a refurbished or rebulbed projector lamp module is installed in a projector and causes problems with the projector itself, often the projector warranty will not cover any damage caused. Projector lamp performance and brightness during projector operation can also be reduced.

mercury risk in projector bulb and lamp

Refurbished projector lamps and problems with mercury

Most beamer projector lamps contain the chemical mercury in the form of a gas. It is this gas that glows brightly during the operation of the projector lamp and enables the projector to produce an image on the screen. However, if a projector lamp module is refurbished with a projector bulb and either the old projector bulb or new projector bulb being installed is damaged in the rebulbing process, this mercury gas could escape. In fact, chemical tests on the plastic lamp housing of projector lamps that have had only their bulbs replaced have revealed traces of mercury. This creates a clear safety risk to rebulbed or refurbished projector lamp products.

damaged projector lamp connectors

Projector lamp performance issues with used lamp parts

While an LCD or DLP beamer projector lamp module is being used inside a projector, every part of the lamp module is being subjected to very high temperature levels. If a projector owner decides to replace only the projector bulb in their beamer lamp assembly, this means that many parts of the resulting refurbished projector lamp module are actually used, which when compared to a brand new projector lamp module will not offer the same high levels of lamp performance. Furthermore, since the projector lamp's connectors are not replaced during bulb refurbishment, and since these are the components of the lamp that are connecting the projector lamp to the projector's power supply, flickering images are possible due to a reduction in the stability of the lamp's power supply.

dust particles in projector lamp

The build up of dust inside a beamer lamp module is not accounted for

While a projector lamp module is installed inside an LCD or DLP projector, dust particles slowly build up around the projector bulb and other lamp components such as the projector lamp housing. If only the projector bulb is replaced this means that a lot of the old dust is left behind on the lamp housing. Even if this lamp housing is cleaned before being refurbished with a new projector bulb, it can be difficult to remove all of the dust that has built up over the projector lamp's life. The dust that remains actually insulates the lamp module and causes the projector bulb to retain extra heat, and can also interrupt the flow of air from the projector's fans which works to cool the lamp. The two of these factors combined can lead to a reduction in the projector bulb's life time, and may even cause the projector itself to overheat or experience problems.


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