The PIAA XTREME White Bulbs that I ordered a few weeks ago arrived today, going by the reviews and the claim this should not only give me a whiter light but extra light out the back. Whilst the coating on the globe would reduce light output to a certain extent the fact that they were 27watts instead of the standard 21watts instilled me with confidence that they would achieve both of these claims and resolve one of the minor issues with the VW Golf GTI which is only one reverse light.
They arrived well packaged in a nice presentation box and I fired up the lux meter in preparation for a blinding display from the PIAA. The results speak for themselves.
Measured on a digital lux meter at 500mm and 1100mm.
Standard 21watt PIAA 27watt
403 146 (550mm)
75 27 (1100mm)
Pretty disappointing and whilst the light from the PIAA looks whiter and brighter when looking at the globe it doesn’t illuminate anywhere near the same area as the standard globe. Needless to say the PIAA globe has been removed. The globe also felt a fair bit hotter (hotter then expected) then the standard 21watt globe, the coating also smelt burnt (may have been because the coating was new). Needless to say the globe has been returned to standard.