True Violet LED with 420nm peak coming soon from NanoTuners to blue your mind

By Jake Adams on Sep 29, 2010

First we had blue LEDs, then Royal Blues and now prepare yourself for the onset of “True Violet” LEDs. With a maximum emission peak of 420 nanometers, the True Violet LED is an exciting new LED color for it’s potential to get closer to the original actinic light, the Phillips Actinic 03 lamp. NanoCustoms/NanoTuners is letting loose that they will be making the spankin new True Violet LED available in as a little over a month from now, in early November. NanoCustoms describes the True Violet LED as being “a really light violet, and is washed out quickly with bright white light. Additional fluorescence in corals isn’t really noticeable unless used in larger quantities”.

The 420 nm LED light engine will be available from NanoTuners riding solo on it’s own 20mm MCPCB for $6 a piece and is compatible with Cree optics. We can’t wait to see this True Violet in action alongside some blue LED colors like blues, royal blues, cyans and everything in between. This is one case where it’s pretty certain that the True Violet LED won’t be incorporated into commercial LED fixtures until the next production cycle so the DIYers will get first crack at this exciting new true violet LED shade by making their own. When the True Violet LED goes on sale at NanoTuners you might as well order up a single or a strip heatsink from NanoTuners, load one of these True Violet LEDs and show us what you got. Pictured above is a test tank that NanoTuners has going with the True Violet LED and as you can see, it’s a deep rich coloration. More geek deets on the True Violet LED after the break.

Customized NanoCustoms PAR 38 lamp with two royal blues on the left, and one True Violet LED on the right.

Wavelength – 420nm +/- 5nm

Spectral Half Width – 12nm

Optical Output Power – 350-400mW

Max Current – 500mA

Typical Forward voltage (@500mA) – 3.8v

Viewing Angle – 120 degrees

Max LED Junction Temperature – 125C

clive@nanocustoms

While this LED isn’t going to win any awards for adding color with bright white lights on, it does add a fairly considerable amount of PAR all by itself. Under the tests we conducted, we saw about a 10% increase in PAR (measured with a spectrometer, not a quantum meter) with swaping a royal blue LED in for a true violet.
clive@nanocustoms

While this LED isn’t going to win any awards for adding color with bright white lights on, it does add a fairly considerable amount of PAR all by itself. Under the tests we conducted, we saw about a 10% increase in PAR (measured with a spectrometer, not a quantum meter) with swaping a royal blue LED in for a true violet.
Matthew

This is really cool. I have a question. It says the max current is 500 mA. Wouldn’t that mean that mixing them into a string would put say CW or RBs at very underdriven if you didn’t want to overdrive the bejeezus out of the violet LEDs?
Matthew

This is really cool. I have a question. It says the max current is 500 mA. Wouldn’t that mean that mixing them into a string would put say CW or RBs at very underdriven if you didn’t want to overdrive the bejeezus out of the violet LEDs?
Chris

What you would do is if the circuit is running at 1000ma, put the True Violets into parallel within the series. That would give each True Violet emitter 500mA while keeping the Crees happy. If its a single LED, a resistor in line or other means of current downrating would do the trick.
Chris

What you would do is if the circuit is running at 1000ma, put the True Violets into parallel within the series. That would give each True Violet emitter 500mA while keeping the Crees happy. If its a single LED, a resistor in line or other means of current downrating would do the trick.
Mike

Only on paper in theory would putting them in parallel give 500mA to each, in reality one would more than likely get a bit under 500mA, the other a bit over 500mA.
Mike

Only on paper in theory would putting them in parallel give 500mA to each, in reality one would more than likely get a bit under 500mA, the other a bit over 500mA.
hahn

That is true… often each color LED has a slightly different voltage drop.

I wonder, who makes the actual LED?
hahn

That is true… often each color LED has a slightly different voltage drop.

I wonder, who makes the actual LED?
bob

Will this LED emit ultra violet rays harmful to our eyes?. Should we be using a glass shield for safety?
bob

Will this LED emit ultra violet rays harmful to our eyes?. Should we be using a glass shield for safety?
http://www.facebook.com/TWLED KENNY

NOW I AM TESTING 2 MULTI CHIP COB LED
9 CHIP 400nm circuit is running at 1500mA@15W
7CHIP 410nm circuit is running at 700mA@15W

Elegance Coral Under LED 15W UV BEAND 400nm look so beautiful Emerald-green…
http://www.facebook.com/TWLED KENNY

NOW I AM TESTING 2 MULTI CHIP COB LED
9 CHIP 400nm circuit is running at 1500mA@15W
7CHIP 410nm circuit is running at 700mA@15W

Elegance Coral Under LED 15W UV BEAND 400nm look so beautiful Emerald-green…
clive@nanocustoms

@bob: No, this won’t emit enough UV for it to be a concern. It does trail off slightly below 400nm, but the energy levels at taht point are so low that it’s not worth worrying about. You should be careful with all LEDs though, as intense light can be just as harmful to the eye. Just like the sun, don’t go staring at them.
clive@nanocustoms

@bob: No, this won’t emit enough UV for it to be a concern. It does trail off slightly below 400nm, but the energy levels at taht point are so low that it’s not worth worrying about. You should be careful with all LEDs though, as intense light can be just as harmful to the eye. Just like the sun, don’t go staring at them.
xgame2k

only if i could swap some xre rb’s for these!!!!!!!
xgame2k

only if i could swap some xre rb’s for these!!!!!!!

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