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LED vs incandescent blacklight.

LED vs incandescent blacklight.

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LED vs incandescent blacklight bulb.
7w - 75w
Large amount of UV - Very little UV
Little to no heat - Might as well call it a heat lamp
90 Fahrenheit - 465 Fahrenheit
Long lifespan 10k+ hours - Only 480 hours max

When it come to making UV. LED is king in that area. No need for filters whilst incandescent needs filter to block most light except UV and IR. Even mercury and fluorescent loses to UV LEDs. We all have seen what MV blacklight look like were the Wood’s glass bulb were to break. Like a clear MV lamp. Ever seen bugzapper fluorescent bulbs in use? That’s what BLB tubes look like without the Wood’s glass. All the visible bluish white light is wasted away blocked by the dark glass.

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Date added:Aug 25, 2019
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HomeBrewLamps
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Aug 25, 2019 at 06:06 PM Author: HomeBrewLamps
i Disagree. I've had better experiences with fluorescent than i have LED. and I've messed with many different LED and fluorescent stage light fittings and home lighting fittings.


incandescent sucks though.


you seem to be only comparing efficiency and not over all effectiveness. UV LED's arent even emitting the exact same wavelength as other technologies. if i recall correctly UV fluorescent is 365nm while LED is 395. so the LED's are actually emitting more visible light than the woods glass covered fluorescent lamp.

~Owen

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bryanrb
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Aug 25, 2019 at 06:12 PM Author: bryanrb
I have an LED UV flashlight. They are actually very good at making neon colors glow bright. Incandescent doesnt even compare. They are about the same as the fluorescent ones.
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Aug 25, 2019 at 06:16 PM Author: HomeBrewLamps

I have an LED UV flashlight. They are actually very good at making neon colors glow bright. Incandescent doesnt even compare. They are about the same as the fluorescent ones.

I'm not saying that LED's are bad at their job. but I don't feel that they're better (Than Fluorescent). not yet anyway.

~Owen

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Aug 25, 2019 at 07:28 PM Author: takemorepills
Fluorescent/discharge BLB light sources are still FARRRR better than LED BL sources, especially when you consider amount of visible light. Every LED BL source I have seen has tons of visible purple light, which reduces the contrast effect of what good blacklight should have. Fluorescent/discharge BLB emit very little visible light, making the glow effect far more pronounced.

Maybe someone needs to choose a better LED and mount it behind woods glass to achieve similar performance to fluorescent/discharge BLB?
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Aug 25, 2019 at 07:46 PM Author: Lumex120
Yeah, from my experience fluorescents are loads better than incandescents OR leds for that matter. I have a 13w BLB CFL that seems to be a lot "brighter" in the UV category than a blacklight LED lamp I have tried.

Any machine is a smoke machine if you operate it wrong enough.

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Aug 25, 2019 at 08:07 PM Author: Lightingguy1994
Here is my experiences with BLB light sources. Incandescent is very ineffective , it should not be considered as an option. As for LED I only own a UV flashlight and its not has good as the fluorescent. Seems a little more towards the blue. LED filament BLB are not sold here yet so my exp is limited here. Fluorescent seems like it is still the best, a good 40w BLB on a full power ballast is very effective.

The best I would imagine is a BLB mercury vapor lamp but they are hard to get hold of

Commenting is open on my gallery. All comments welcome on my content. Only bullying and insults would be removed.

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Aug 25, 2019 at 09:31 PM Author: HomeBrewLamps
I just bought an LED filament Black light tonight and it is most definitly inferior to my fluorescents!

~Owen

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Aug 25, 2019 at 11:21 PM Author: dor123
The problem with LEDs is most Chinese UV LED products produces 390-405nm, which is way longer than the emission of blacklight MV (365nm) and blacklight fluorescent (I don't know). If you want to get better results in UV LEDs, you must ensure that the LEDs produces at least 350-370nm. You can see a comparison I've done with two UV flashlights of different wavelengths here: https://www.lighting-gallery.net/gallery/displayimage.php?pos=-163163

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

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Aug 26, 2019 at 05:41 AM Author: rjluna2
That's interesting.

One thing I do know that the incandescent blacklight bulb they tend to overdrive the filament a wee bit.

Pretty, please no more Chinese failure.

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Aug 26, 2019 at 05:50 AM Author: dor123
Incandescent lamps are UV free when operated at 2700K, so they overdriving the filament to get UV from the lamp, but still it is too little.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

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Aug 26, 2019 at 09:36 PM Author: bryanrb
BL fluorescents are around 350-360nm. Sylvania's BL fluorescents have "350 Blacklight" etched into them. I assume the 350 means the wavelength of that particular lamp. It is a UVA lamp.
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Aug 26, 2019 at 10:55 PM Author: tolivac
I also feel discharge-mercury is still the best UV light sources.Better than LEDS and incandescent.I have a Raytech portable UV light that can generate short wave or longwave UV.Used for Rockhounds.The light uses two 6V lantern batteries.These lights are still sold today.Mine is like 30yrs old-still works!The light is for UVA,UVB radiation..
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Aug 26, 2019 at 10:57 PM Author: tolivac
I also have a 100W mercury UVA light-great for blacklight posters and such.Bought from a former worksite during one of their surplus sales.
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Aug 26, 2019 at 11:38 PM Author: Lumex120

I also have a 100W mercury UVA light-great for blacklight posters and such.Bought from a former worksite during one of their surplus sales.

ooo, sounds interesting. got any pics?

Any machine is a smoke machine if you operate it wrong enough.

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Aug 26, 2019 at 11:41 PM Author: dor123
There are 350-365nm LEDs in the market, but they are very rare and expensive. Probably this is the reason why most UV LED products uses UV LEDs that produces longer wavelengths than MV and fluorescent blacklights and even violet LEDs.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

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Aug 27, 2019 at 09:21 AM Author: takemorepills

There are 350-365nm LEDs in the market, but they are very rare and expensive. Probably this is the reason why most UV LED products uses UV LEDs that produces longer wavelengths than MV and fluorescent blacklights and even violet LEDs.


It is very difficult to purchase these LED light sources. But I still think that fluorescent/discharge BLB sources are better than the best LED because LED emission peaks are very abrupt, and fluorescent/discharge emission peaks trail off a bit less abruptly. Some UV reactive paints and materials may not fluoresce strongly under LED, while others may fluoresce just as strongly under LED or fluorescent. But the smoother emission peaks of fluorescent usually allow almost all UV material to fluoresce very well, all while emitting very little visible light.
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Aug 29, 2019 at 01:39 PM Author: James
Actually I have very good experience with these LEDs of around 400nm. Even though the peak wavelength is not at the deeper 365nm of fluorescent which delivers the strongest fluorescence in many materials, the 400nm LEDs radiate very considerably more power than equivalent 365nm LEDs. Often it can be more valuable to have a lot more light of a slightly longer wavelength, than a much smaller quantity of the correct wavelength, to deliver the brightest fluorescence effects.
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Aug 29, 2019 at 10:50 PM Author: dor123
@James: You can see here how a 370nm and a 395-400nm LED flashlights lights a bill of ₪50.
Edit: https://www.lighting-gallery.net/gallery/displayimage.php?album=1917&pos=0&pid=163772

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

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