glowing CF lamp

[James S]

I've been following the Compact Florescent thread and while surfing at topbulb.com I came across this:

http://www.topbulb.com/find/Product_Description.asp_Q_intProductID_E_47158

It can't be that they have added some glow powerder to the phosphor? Or have they just used a different kind of phospor?

The text at the website is not very long, it just says that this lamp is ideal for places where it would be bad to loose light immediately in a power failure, like a mine or other place without windows as it continues to glow after switched off.

They don't say for how long or how brightly, but with all the interest in glowing things I thought folks might be interested. 9 watt, on sale right now for $16

If anyone is motivated to order one, please report back. I've spent all my money for the time being

 

[vcal]

I read an article on a similar item (using Nichia phosphors) a year or so ago. I'll see if I can find it.....

Fyi-manufacturing phosphors for fluorescent lamps was (and still is) Nichia's original business.

 

[Kirk]

James S,
I purchased some 4-foot fluorescent tubes for my work's restrooms. They are called After-Glo (something like that). Not too impressive. If you close your eyes for a minute or two before shutting off the power, yeah, you can see a little. Enough to get the "paper work" done, if you know what I mean. The glow dims after 10-15 minutes. If you have your eyes open and they have become used to the light, and then you shut off the power, might as well not have the After-Glo. It is dark! These tubes are made in Germany and I bought them from Topbulb or Lightbulbs.com . I can't imagine the little bit of glow powder a spiral tube CF has would put out any measureable or useful light. I may be wrong, but I'm not spending my money to find out. That's my 2 centimes.
Kirk