I had speculated recently what would happen in the event of a ballast choke breaking down while operating and sending a large current into a fluorescent tube....
... It works fine on every computer I've tried it on, must be something configured wrong on your end. Right click the link (assuming Windows) and save the link...
That's exactly what happened. The stem cracked. The lead wires melted back to the stem and cracked and busted pieces of it off admitting air. Even T-8 lamps on...
Also F96T12 slimlines can sometimes do this when they fail. When either cathode is depleted, the lamp can flicker wildly & the arc will swirl and twist. You...
Actually they have but you don't usually see them. Such lamps are useless for illumination because of the poor color content. Their purpose is to kill germs....
The stems are actually designed to fail in the VHO tubes because their demise is often less than peaceful. Other stems may also fail that way, but I remember...
... tube. Any ... If it were clear it wouldn't be fluorescent as there'd be no phosphor to fluoresce. They do make clear tubes though, I have some germicidal...
Warning, germicidal tubes are dangerous to the eyes and skin for even one second! Talk about painful eyes that feel like sand thrown on them! It's important to...
... even one second! ... important to use protection such as googles, etc when looking at them. ... While I wouldn't advocate looking at them, I've done so on...
True! back when I was a teenager, I had an arctube from a 100w mercury lamp. When I first lit it up, I could smell ozone quite strongly. I ran it for a few...
So what is special about the tubes used in tanning beds? They aren't completely clear are they? But what makes them produce UV? [Non-text portions of this...
... I have a 1KW mercury floodlamp with a phosphored reflector. It's not a UV lamp but Phil ran one for a bit and got a sunburn from the light passing through...
... The fluorescent type have a phosphor that emits less harmful wavelengths of UV, tanning beds are still rather unhealthy though. Another type I've seen uses...
Yeah I have ired a few ballasts that way myself and never did it again! It'll also fry preheat and RS ballasts, and it known as a "rectifying lamp" and anytime...
The first high-pressure mercury lamp I ever had was a 70's style Sears sunlamp. It was essentially a bare mercury lamp arc tube and a heating coil behind it to...
The screw shell of one of my favorite lamps (bulb) became loose a long time ago. I removed the screw shell and scaped the old glue, cement, epoxy or whatever...
Go to a harrware store, ask for a tube of furnace cement. It's a high temp strong sement VERY close to basing cement. I used it to rebase a 400 watt westy lamp...
I recently purchased a neat book from "Images of America" series entitled THE NEW JERSEY TURNPIKE. This is a great history book about the building of the...
There is a new forum on the www.lighting-gallery.net page....go and check it out! Now you can use all 3 wonderful groups, the lighting-gallery.net page, ...
I recently stumbled across a new website depicting all of those different luminaires staying lit in the daytime. The name of this site is All Lit Up!, and ...
Hi everyone, I've been reading with great interest your passion for streetlights. I'm doing an extensive study for a California utility to develop a...
Regarding energy management: 1. If I remember correctly, new lamp and ballast technology would be needed in order to make streetlights dimmable. Each light in...
One company claims successful dimming of HID lamps, metal halides even, though they are very secretive as to how this is done. It is reportedly very costly,...
Hi folks, I work in the street lighting management area in Brazil and I am very interested in following the progress of the technology on the lighting control...
Hi everyone, We’re looking at technology companies in Canada, United States, and Europe that have developed streetlight dimming capabilities. As for the...
... I'm starting to think that claim is bogus, what else would explain the bizarre level of secrecy given how little time it would take to reverse engineer...
Rather than tricky systems to manage current streetlighting at great expense, it would seem to me more useful to develop new lighting that provides the...
... most of ... It's even worse around here, quite a few of the arterials are 400W HPS that spray light everywhere. I'd be very curious to retrofit a few...
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