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Archive for July, 2008

July Flash Survey

Saturday, July 19th, 2008

We conducted a consumer survey in July of 122 Samsung and Mitsubishi DLP owners.

We asked: “What kind of issues have you experienced with your Samsung or Mitsubishi DLP television set in the past two years?”

The answers ranged from replacing the lamp to replacing the light engine.

Lamp replacement Ballast or color wheel Light Engine or other major repair No problems Total
53 25 4 40 122
July 2008 Flash Survey

July 2008 Flash Survey

Brand Name vs Generic

Friday, July 18th, 2008

Why is it so important to buy brand name components when purchasing a high performance lamp for your DLP or LCD television? The answer won’t shock you, but you’ll think twice before buying generic.

First of all, let me preface by saying there is nothing wrong with purchasing generic parts. With some electronic components or consumable parts, generic is the most cost-effective way to go. The same goes for DLP and LCD projection lighting. Generic can be a great for your wallet in the short-term, but you may kick yourself 4 months down the line when your generic lamp goes kaput.

Hg, or mercury, vapor lamps are under extremely high pressure and it all comes down to the manufacturing process. The better the process, the better the lamp. There are two main parts to a UHP lamp, the lighting element, sometimes called the burner, and the reflector. Philips used to manufacture both in Belgium, but as demand and costs grew, Philips started manufacturing the reflector in China. The burners are still said to be manufactured in Europe since it’s a trade secret–and for good reason too since the burner is what makes the lamp ignition possible. For example, here’s a Philips E23h:

Philips UHP 100W/120W 1.0 E23

• Customer part#: PHI/378
• Lamp Application: RP-TV
• Reflector type: Elliptical E23
• Arc gap: 1.0 mm
• Power: 100W/120W
• Ignition voltage: Ignition voltage 20kV ± 5kV
• Light output typical * : 4100 lumen (in 120W mode)
• Average Life time ** : > 6000 hrs
• Environmental: RoHS and WEEE compliant

Click on image for more information

Philips E23h 100/120W 1.0 PHI/378

Philips E23h 100/120W 1.0 PHI/378

We’re still researching some of the generic manufacturers, so we’ll continue to update this news item as time allows.