Today (Sunday, 13.feb.2011) i was in the offices of the hostels, and they have HF instant start fixtures with two Sylvania (SLI) T5 FHO Luxline Plus 54W lamps each, both inside the offices and outside them. The T5s outside the offices were off, and when i turned them on, i was greeted with a dim pink light from the krypton+argon buffer gas, with bright light only on the extreme ends of the lamps and this lasted about 3-4 mins until the mercury fully diffused toward the tubes. Sylvania T5s Luxline Plus don't contains amalgam, but liquid mercury (Like most linear fluorescent lamps, except several special T5s). So i suspect that this is their characteristics during initial switch on. So they're no different like the ALTOs in this manner. Is this the case? Why this was happened?
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I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.
I only working with the international date format (dd.mm.yyyy).
I lives in Israel, which is a 220-240V, 50hz country.