Diamond Lamps - Copy lamps - a false economy

Copy lamps
a false economy

Independent Testing!
commissioned by Philips, undertaken by Kema.

Dec 2007 – Comparison of Philips original bulbs with a variety of copy/compatible lamps.
For each different lamp type, 5 lamps from each brand were ordered via the Internet or external suppliers to ensure that no pre-selection of product took place.

Photometric Testing

Application	ANSI Lumens

	DLP Dell Projector	LCD Sanyo Projector

Lamp Type	200W 1.0 E19	200W 1.0 E19.5

Philips	1535	1845

Compatible player A	1287	1264

Compatible player B	-	-

Compatible player C	1065	-

Application	Luminance

	DLP Samsung RPTV	LCD Sony RPTV

Lamp Type	100W 1.0 E23	100-120W 1.0 P22

Philips	418.1	335.3

Compatible player A	151.8	188.8

Compatible player B	133.1	252.4

Compatible player C	-	-

The ANSI lumen values for the Philips front projection DLP™ lamps are on average 32% higher compared to lamps from compatible players A and C.

The ANSI lumen values for the Philips front projection LCD lamps are on average 46% higher compared to lamps from compatible player A.

The luminance in the centre of the rear projection LCD TV is on average 54% higher for the Philips lamp compared to the lamps from compatible players A and B.

The luminance in the centre of the rear projection DLP™ TV is on average 218% higher for the Philips lamp compared to the lamps from compatible players A and B.

Conclusion: The Philips original lamps offered a vastly superior performance to the copy lamps tested.