Tα περί ra δεν τα γνωρίζω, οπότε εσύ ξέρεις καλύτερα.
Αυτά που έγραψα τα διάβασα σε ένα site ψάχνοντας παλιότερα για τον φωτισμό.
Να τα κοπίαρω όπως τα λέει:
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Osram T8 Lumilux ( T8 )
T8 = 26mm / 1in diameter
Fewer lamp replacements compared to BASIC fluorescent tubes due to longer life
Higher lumen maintenance and better colour rendering than BASIC fluorescent tubes
Up to 30% Energy saving compared to BASIC fluorescent tubes
15000 Hour life when used with Conventional / Switchstart / Magnetic Control Gear
20000 Hour life when used with Electroninc / High Frequency Control Gear
Ideal for professional office lighting
Colour 865 = Daylight / 6500K
Colour 840 = Cool White / 4000K
Colour 835 = White / 3500K
Colour 830 = Warm White / 3000K
Colour 827 = Interna / 2700K
Equivalent to the following brands:
GE Polylux XL / Philips Master TL-D / Sylvania Luxline Plus
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Osram T8 Basic ( T8 )
Cost effective T8 fluorescent tube for general purpose lighting
T8 = 26mm / 1 inch diameter
Halophosphate tubes ideal for less demanding applications e.g. cellars, garages, outdoor lighting
Colour 765 = Daylight / 6500K
Colour 640 = Cool White / 4000K
Colour 535 = White / 3500K
T8 Basic not available in warm white
Equivalent to Philips TL-D range, GE F range & Sylvania Standard range
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