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Effect of fitting on temperature A quick test with a thermal camera. Shown is two pairs of 36w T8 Philips lamps running on the same model of Philips HF ballast. It's interesting to see just how much the fitting affects the temperature of the lamps. The phosphor temp in the middle was 37'C for the batten fitting and 43'c for the louvre fitting.

Effect of fitting on temperature

A quick test with a thermal camera.

Shown is two pairs of 36w T8 Philips lamps running on the same model of Philips HF ballast.
It's interesting to see just how much the fitting affects the temperature of the lamps.
The phosphor temp in the middle was 37'C for the batten fitting and 43'c for the louvre fitting.

DSCF1055.jpg IMG_3208.jpeg P3_251028_091832_860.jpg Photo_09-02-20262C_10_46_23.jpg Photo_28-10-20252C_19_24_29_281429.jpg
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Filename:P3_251028_091832_860.jpg
Album name:FrontSideBus / Miscellaneous
Filesize:806 KiB
Date added:09 Apr, 2026
Dimensions:960 x 1440 pixels
Displayed:66 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=24410
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Comment 1 to 5 of 5
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Liam   [09 Apr, 2026 at 02:51 PM]
These thermal pics are quite cool to see. Would be interesting to see the difference between 4 of the same tubes like Philips 840, 2 on HF and 2 on SS to see if there is any temperature change between the 2 sets of tubes on 2 different gears after a hour running etc.
Kev   [09 Apr, 2026 at 07:49 PM]
Ah so the lovure did dissipate the heat better?
FrontSideBus   [09 Apr, 2026 at 09:40 PM]
The lamps in the batten fitting is a fair bit cooler.
Danny   [09 Apr, 2026 at 10:33 PM]
Take your camera into a crowd of people and catch how many fart lol … seriously tho good pics. I guess the Louvre acts as a heat sink in some way?
FrontSideBus   [10 Apr, 2026 at 07:35 AM]
A heat sink would lower temps, the lamps in that fitting is warmer due to the reduced airflow around the tubes.

Comment 1 to 5 of 5
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