WorldwideHIDCollectorUSA
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HID, LPS, and preheat fluorescents forever!!!!!!
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| As I have been looking for some fluorescent tubes from many parts of the world to add to my collection, I have noticed that Philips' 54-765 lamps seem to be more popular than any other Philips standard colours lamp outside of Europe and North America. Why are the 54-765 fluorescent lamps more popular than all other Philips standard colours lamps such as the 29-530 lamps, the 35-535 lamps, and the 33-640 lamps?
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Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.
DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.
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dor123
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| It is very cheap and have the highest CRI of all calcium halophosphate lamps (With this phosphor, the lower CCT, the lowest CRI [530, 535, 640 and 765]).
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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.
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Medved
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| The "whole world except Europe and USA" practically means mostly warm climate countries. And there the cold CCT are way more popular - they are seen as a form of luxury lighting. And in the 6500K area the halophosphates aren't that inefficient and poor color rendering as with the lower CCT, while they are still very cheap.
So no wonder the 765 would be the first choice for a region where high CCT are popular and where the budget uses to be tight...
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No more selfballasted c***
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dor123
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| In Israel, during the 20th century, when fluorescent lamps were limited to circulr T9, short T5, argon T8, T12 and later krypton T8, there were only two popular colors (Both from calcium halophosphate): 640 and 765. 765 was the most popular, but I don't think that 765 was popular in Israel because of the Israeli climate. During that period, most homes used incandescent and halogen lamps, which are 2700-3000K in color, and only at the kitchens, 765 color fluorescents were popular.
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Logged
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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.
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funkybulb
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| In the UK 535 was popular choice . EU use more 640/ 33 and 750/25 universial whites over /640. And the 765 also was once common. Back in the 50s until 1995 in the US 765 lamps were not
that common. Then univerersal while calling that CW plus series replace CW 640 tubes. And 865 DX replace 765 daylight and it became more wide spred. Then 2012 bans kicked in the DX really became wide spred. As this what Ive seen in Texaa southern Climate
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No LED gadgets, spins too slowly. Gotta love preheat and MV. let the lights keep my meter spinning.
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WorldwideHIDCollectorUSA
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HID, LPS, and preheat fluorescents forever!!!!!!
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| We still have 765 halophosphate daylights in other tube lengths such as F20T12 tubes, all slimline tubes except F96T12 tubes, and most HO tubes.
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Logged
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Desire to collect various light bulbs (especially HID), control gear, and fixtures from around the world.
DISCLAIMER: THE EXPERIMENTS THAT I CONDUCT INVOLVING UNUSUAL LAMP/BALLAST COMBINATIONS SHOULD NOT BE ATTEMPTED UNLESS YOU HAVE THE PROPER KNOWLEDGE. I AM NOT RESPONSIBLE FOR ANY INJURIES.
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