does anything like this exist?

[rudeguy]

I need a small neon (~12" long and no bigger than 1/2" tall) or a row of LED's that size. The thing is it cant be 12 volt, has to run off house current.

Can anyone point me in the right direction?

 

[Viper GTS]

Considering that house current is AC I think you're going to be stuck with some sort of wall wart no matter what.

Viper GTS

 

[sharkeeper]

It's possible to do a direct drive 100-300VAC/DC arrangement with an onboard potted supply. How many mcd should the discrete emitters be spec'd?

 

[KMurphy]

Ledtronics and Starled have a large variety of LED's that can be powered at 120VAC. You will probably have to purchase individual units and mount them in a custom enclosure you make or buy yourself.

 

[rudeguy]

LOL...nothing fancy sharky! I am just trying to find a cheap and easy way to light up my keyboard at night.

 

[sharkeeper]

120VAC on your keyboard?

USB or PS/2? You can leech off the internals depending on the colour you want. Reds are more efficient than blues, for example.

 

[TipsyMcStagger]

here's another alternative to light up your keyboard using ELwire. A kit can be found for very cheap at many stores... SVC, xoxide, crazypc

here

 

[KMurphy]

Originally posted by: sharkeeper
It's possible to do a direct drive 100-300VAC/DC arrangement with an onboard potted supply. How many mcd should the discrete emitters be spec'd?

The links I provided use no such method of voltage conversion for up to 300VAC. They use relatively high value resistors to drop the voltage to a tolerable level.

 

[Eli]

Originally posted by: sharkeeper
120VAC on your keyboard?

USB or PS/2? You can leech off the internals depending on the colour you want. Reds are more efficient than blues, for example.

LOL....

 

[sharkeeper]

The links I provided use no such method of voltage conversion for up to 300VAC. They use relatively high value resistors to drop the voltage to a tolerable level.

Some people may object to the flicker. Essentially the LED is driven by A/C. Since it has very fast attack and decay times, the flicker at 60Hz will be noticeable.

 

[sniperruff]

just sneak up to an infiniti G35/FX35 and rip those sexy LED's out!

 

[KMurphy]

There is no noticable flicker for the application we use them for; indication lamps on switchgear.

 

[sharkeeper]

There is no noticable flicker for the application we use them for; indication lamps on switchgear.

You won't notice it if you stare at it. If you move your head you will see the flicker. I know I can. On the desk panning back and forth that would drive me crazy!

Exit sign retrofits also use C9 socket replacements. The published lifetime of the LED is 9-11 years 24/7 for this application. Freaking exit signs! I hate safety punchlists. :|