LED torchier lamp recommendation

[winnie]

This isn't properly an electrical installation question, since I'm looking for something freestanding that simply plugs into the wall.

I was wondering if you guys had suggestions for a 'current technology' replacement for old school halogen torchier lamps. You know the old school _cheap_ fire hazards that produced a ton of light by dumping 500W into a halogen bulb.

I'm looking for a high power, high CRI, low flicker LED lamp that puts out light of similar quality to a 500W halogen. I'm partial to matching halogen color temperature; but I think the 'customer' would actually prefer a higher color temperature (but still with the high CRI and low flicker).

LED work floods generally don't care about CRI or flicker; they tend to just be as cheap as possible.

Current 'Torchier' style LED lamps don't seem to specify CRI and also have lower lumen output than old school 500W halogens.

I'm sort of considering the lamps made for videography, but they might be optimized for short operating life to get other qualities at a reasonable price (I'm remembering 'photoflood' lamps with 4 hour rated lifetime.)

Thanks for any suggestions.

Jonathan

 

[hbiss]

If CRI and color temperature are important as well as high lumens then the only way to go is with theatrical lighting. What the heck is he doing with these lights anyway??

-Hal

 

[winnie]

Just general lighting use. The 'customer' is a friend who wants bright light that looks nice, and was specifically asking for something that acted like the old school 500W halogen lamps.

I was looking at the lights sold for video use, sort of along the same lines as theatrical lighting. Question: will theatrical lighting be expected to have a short life (I remember 'photoflood' lamps with 4 hour rated lifetime), or will it simply be crazy expensive?

Thanks
Jonathan

 

[hbiss]

Question: will theatrical lighting be expected to have a short life (I remember 'photoflood' lamps with 4 hour rated lifetime), or will it simply be crazy expensive?

I don't think that the LED versions of today suffer that fate. As for cost, you will have to look. If you are looking for bulb that will retrofit a floor or table lamp that's not going to happen.

-Hal

 

[wwhitney]

If CRI and color temperature are important as well as high lumens then the only way to go is with theatrical lighting.

But hopefully there is a middle ground, some available consumer products that are a bit more expense than average but perform noticeably better than average. Something like CA's JA8 standard for LED bulbs.

Speaking of which, just getting a torchiere with standard e26 sockets, and using high quality LED bulbs in the sockets, may be a good option, even if the resulting LED geometry is inelegant.

Cheers, Wayne

 

[MyCleveland]

Just general lighting use. The 'customer' is a friend who wants bright light that looks nice, and was specifically asking for something that acted like the old school 500W halogen lamps.

I was looking at the lights sold for video use, sort of along the same lines as theatrical lighting. Question: will theatrical lighting be expected to have a short life (I remember 'photoflood' lamps with 4 hour rated lifetime), or will it simply be crazy expensive?

Thanks
Jonathan

If your friend is capable….consider a wooden/metal cube or cylinder. Height determined by standing sight lines that can be tolerated.
At the top of your build will be a 1x1, or 2x2, or industrial round inverted to generate your indirect lighting.
You have so many commercial options of lumen packages available.
Be sure to add dead weight in the bottom to prevent tipping. You can get more creative and add shelving.

 

[Flicker Index]

Is this actually going to be used for podcasts or televised thing? That's very relevant, because how it interacts with the shutter speed is more important.

You may have noticed vertical or horizontal bands (depending on how the sensor is oriented) or skin tone drifting while watching YouTube.

That's when the skin tone slowly and gradually swings back and forth between usually purplish and greenish hue. You may experience this if you're not using something specifically intended for digital studio/broadcast.

 

[winnie]

This is not for any sort of video or film work, though they might illuminate a room with computers in use, so interaction between the lighting and the computer screen is an issue to consider.

This is simply me trying to delight my GF with a modern efficient lamp that closely mimics the 500W halogen torchier lamps.

I rather like @MyCleveland 's suggestion of using an industrial round fixture inverted. Question: Can 'UFO' fixtures generally be run inverted?

@Flicker Index : I really appreciate your input on this topic; I think you have a good handle on the pitfalls of LED systems, and might have suggestions for the best approaches to handling those pitfalls.

Thanks
Jonathan

 

[LarryFine]

Home Depot carries LED replacement bulbs for torchier lamps. They have a cylindrical body with offset ends that fit in the halogen sockets.

I have them in my living room and bedroom lamps. They are plenty bright and a nice color. You can leave off the protective glass cover, too.

 

[Flicker Index]

This is not for any sort of video or film work, though they might illuminate a room with computers in use, so interaction between the lighting and the computer screen is an issue to consider.

This is simply me trying to delight my GF with a modern efficient lamp that closely mimics the 500W halogen torchier lamps.

I rather like @MyCleveland 's suggestion of using an industrial round fixture inverted. Question: Can 'UFO' fixtures generally be run inverted?

@Flicker Index : I really appreciate your input on this topic; I think you have a good handle on the pitfalls of LED systems, and might have suggestions for the best approaches to handling those pitfalls.

Thanks
Jonathan

The interaction isn't between the screen and lighting, but between the camera's shutter timing and lighting flicker. Something that needs to be considered if it will be used for lighting for professional or semi-professional recorded/broadcasted contents.

 

[MyCleveland]

This is simply me trying to delight my GF with a modern efficient lamp that closely mimics the 500W halogen torchier lamps.

I rather like @MyCleveland 's suggestion of using an industrial round fixture inverted. Question: Can 'UFO' fixtures generally be run inverted?

Thanks
Jonathan

Is..." " this my age?

Another thought is a simple high output LED shell base corncob (I think that is what they call them).
You might be able to rig up with a simple porcelain lamp holder (660W rated).
If you select a few COOPER lighting fixtures that might work for you, I can run your inverted question by a local factory rep.

Look into the LED shell base first.

 

[winnie]

The interaction isn't between the screen and lighting, but between the camera's shutter timing and lighting flicker. Something that needs to be considered if it will be used for lighting for professional or semi-professional recorded/broadcasted contents.

I understood what you were saying about the interaction between the flicker of the light source and the camera shutter.

I was asking about interactions between monitors and light sources as a separate issue. I had heard (but not experienced) that using a computer monitor with a non-synchronized non-continuous light source could cause visible flicker issues. I guess some monitor technologies are use PWM modulated variable transmission, which would have a shutter effect of sorts.

Thanks
Jonathan

 

[qcroanoke]

Home Depot carries LED replacement bulbs for torchier lamps. They have a cylindrical body with offset ends that fit in the halogen sockets.

I have them in my living room and bedroom lamps. They are plenty bright and a nice color. You can leave off the protective glass cover, too.

Do they have them for the halogen work lights?

 

[LarryFine]

Do they have them for the halogen work lights?

Yes.

 

[Flicker Index]

Just general lighting use. The 'customer' is a friend who wants bright light that looks nice, and was specifically asking for something that acted like the old school 500W halogen lamps.

I was looking at the lights sold for video use, sort of along the same lines as theatrical lighting. Question: will theatrical lighting be expected to have a short life (I remember 'photoflood' lamps with 4 hour rated lifetime), or will it simply be crazy expensive?

Thanks
Jonathan

EcoSmart 325-Watt Equivalent PAR38 Dimmable Flood LED Light Bulb with Selectable Color Temperature (1-pack) G130P385 - The Home Depot

Enhance your home with the EcoSmart PAR38 30-Watt (325-Watt ) LED Light Bulb. This bulb can be used to replace a PAR 38 or 325-Watt bulb and emits 3000 Lumens for up to 25, 000 life -hours. The PAR38 bulb is designed for indoor and enclosed fixtures and features a medium E26 base. Selectable CCT...

www.homedepot.com

It will take 2 of those to match halogen 300W, 3 to match 500W in output. They claim to be 90 CRI.

The short life of photoflood is related to actually running a filament close to the melting point. If you crank up the voltage on a normal bulb until it gets to the same kelvin temperature as 3400K photo flood, they'll be down to single digit life too. Conversely, if you run a normal bulb at 100v, it will run a long time, maybe even outlast lighting grade L.E.D. type lights, but the kelvin temperature will drop, and lm/W will drop drastically.

There's a difference between CCT (correlated color temperature) and color temperature, but a incandescent bulb color temperature is essentially true color temperature with spectral power distribution (including IR and UV) matching that of a black body (damn close enough). Photo floods are intended to work specifically with TUNGSTEN chemical film.

However, when it comes to non-black body originated light sources, film and sensor see things differently. So, daylight film will still turn greenish even if you're using something like RE80 850 fluorescent lamps, because the film is hypersensitive to one of the mercury lines, more so than human eyes. A non-mercury based fluorescent lamp, such as yellow glowing phosphor pumped with blue L.E.D. can be made to have a 5,000K CCT, but the spectral power distribution will differ from an RE80 fluorescent lamp, which in turn is different from a Chroma 50 type phosphor blend.