Author Topic: WHy do people hate ALTO bulbs?  (Read 2072 times)
HomeBrewLamps
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WHy do people hate ALTO bulbs? « on: August 03, 2017, 06:14:28 PM » Author: HomeBrewLamps
So i have an american made alto bulb... and i've heard alot of people talking badly about them.... whats wrong with them?
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Re: WHy do people hate ALTO bulbs? « Reply #1 on: August 03, 2017, 06:46:00 PM » Author: Lodge
They don't last long..
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Roi_hartmann
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Re: WHy do people hate ALTO bulbs? « Reply #2 on: August 04, 2017, 03:51:47 AM » Author: Roi_hartmann
Based on what I've heard here during all these years especially some types of Alto lamps are especially prone to short life. I ofcourse have no first hand experience since they don't sell them here but I've always liked the coloured encaps.

I have few F20T12 cw Altos in my collection and one of those I used up suffered broken cathode eol only after few years but I don't know if it was bad luck or poor quality.

I've been thinking to get some reduced wattage altos to test those out on GE electronic rapid start ballast but I would have to figure out where to source those in the first place.
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RyanF40T12
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Re: WHy do people hate ALTO bulbs? « Reply #3 on: August 04, 2017, 04:59:38 AM » Author: RyanF40T12
They have very weak filaments and poor lamp life.  The first gen Altos were very good though. 
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Re: WHy do people hate ALTO bulbs? « Reply #4 on: August 04, 2017, 07:02:00 AM » Author: sol
Not all Alto lamps are bad, it depends on the batch and the factory location. At my place of work, in my room there are 16 fixtures of 2 lamps and all are Alto except one lone GE that is original to the fixtures. They were spot-replaced starting in about 2009, and only one has failed since then. They have developed a slightly yellow tint, though. Makes the room look like the diffusers have yellowed a bit although not the case. On dark days, the lighting is certainly not of a good colour (makes the room kind of drab).

On the other hand, I have a daylight F15T8 that is also Alto, but made in Holland. That one has been running on a switch start circuit 24/7 since July 2011. That is more than 52 000 hours.
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Re: WHy do people hate ALTO bulbs? « Reply #5 on: August 04, 2017, 10:34:00 AM » Author: HomeBrewLamps
Interesting..... Wonder how long the one i got will last, i dont use it regularly, bt maybe i will mount my fixture as a worklight or something when i move out
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Re: WHy do people hate ALTO bulbs? « Reply #6 on: August 04, 2017, 12:38:19 PM » Author: Lodge
Interesting..... Wonder how long the one i got will last, i dont use it regularly, bt maybe i will mount my fixture as a worklight or something when i move out

For home use they are not bad, but commercial use where they are on for 18 to 24 hours a day they don't seem to last as long,and yes the older ones did last a good bit longer..
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mbulb146
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Re: WHy do people hate ALTO bulbs? « Reply #7 on: August 04, 2017, 09:53:01 PM » Author: mbulb146
F96T12 60W Altos are pretty much worthless.  They dimly striate and flicker even on a hot summer day.
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Re: WHy do people hate ALTO bulbs? « Reply #8 on: August 06, 2017, 11:10:30 AM » Author: xmaslightguy
Some Alto's are just fine, and can easily last 10+ years of daily use (hell I've seen them outlast ballasts)
Others are crap and go mercury starved way before they actually EOL...this is what really gives Alto's a bad image .lol.
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Re: WHy do people hate ALTO bulbs? « Reply #9 on: August 06, 2017, 11:15:16 AM » Author: sol
Conclusion : it depends on the batch. That makes the quality of Alto lamps unpredictable.
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