Return to the thumbnail page Display/hide file information See previous file See next file

Sylvania GTE F40/LW/RS/SS

Sylvania GTE F40/LW/RS/SS

Click to view full size image

I got this lamp out of an electric room at the job im at. I did replace this with a newer sylvania super saver. Its a classic GTE with the lifeline end caps. I'd rather it be a F40CW, not a super saver. Still cool though to add to my collection.

1454635718417-1883467307.jpg 14541123363571820771413.jpg 14533302145661052849734.jpg 1452976430180-140426273.jpg

Light Information

Light Information

Manufacturer:Sylvania
Lamp
Lamp Type:Fluorescent
Shape/Finish:Linear
Service Life:50 %
Electrical
Wattage:34 watt
Optical
Color Temperature:4100/cool
Physical/Production
Factory Location:United States
Fabrication Date:?

File information

File information

Download: Download this File
Filename:14533302145661052849734.jpg
Album name:Cool white 79 / New album
Keywords:Lamps
File Size:138 KB
Date added:Jan 20, 2016
Dimensions:2465 x 1386 pixels
Displayed:68 times
URL:https://www.lighting-gallery.net/gallery/displayimage.php?pos=-115859
Favorites:Add to Favorites
Comments
ace100w120v
Hero Member
*****
Offline

Gender: Male
View Posts
View Gallery


View Profile Personal Message (Offline)
Jan 20, 2016 at 07:20 PM Author: ace100w120v
Actually, Lite White is 3900K 49CRI. But still a cool find for sure! I don't think full-wattage F40T12 Lite Whites were ever made, but Philips did make a F40T10 40w Lite White back in the day.

The purpose of the Lite White, in case you don't already know, or someone else reading this doesn't, is this: With the old-school halophosphate lamps, the lower the CRI (Color Rendering Index), the higher the LPW. (Lumens Per Watt). Since the 34w energy savers are dimmer than a standard F40CW would be, the Lite White was an attempt to make the 34w energy savers as bright as a F40CW, albeit at the expense of color rendering. (Lite White is 49CRI, standard halophosphate cool white is 60 or 62 CRI, depending where you look.

Sylvania/GTE also made a "Lite White Deluxe" lamp. I THINK it was supposed to have better CRI, but don't quote me on this. I've never seen one in person. As far as that goes, I've only seen Lite White in person once, years ago. You'll hear different descriptions from people here on Lighting Gallery about how it looks in terms of color. From what I remember it was slightly greenish. But there was nothing else to compare it to. People have done comparison photos before. If I ever get myself some Lite Whites I'll post some comparisons too, between them and a F40CW, or between them and a standard 34w cool white.
Cool white 79
Newbie
*
Offline

Gender: Male
View Posts
View Gallery

View Profile Personal Message (Offline)
Aug 21, 2016 at 07:47 AM Author: Cool white 79
Thanks for the info. Any idea on D.O.M?
© 2005-2020 Lighting-Gallery.net | Powered by: Coppermine Photo Gallery