Changing the LED

[tdn90]

Hey all,

I want to change the LED on my e-cig, but am not exactly sure the best way to go about it. I LOVE the way the UV LEDs look, yet I would hate to ruin a perfectly good battery.

Any one done this yet? Any tips? Instructions?

Thanks in advance!

Ty

 

[tattooed]

There are UV LED's? That would go so good with my UV tattoos, I could finally show them off.

 

[ruuku]

Well good luck... those solder points are EXTREMELY small. I would guess if your really good at soldering (if you could change leds in the old nokia cell phones/mod consoles) it should work out alright.

As far as instructions i would assume its pretty easy (in theory), pop off the led ashcap, flip over the board, remove old led and install new led. In practice i assume that it might be pretty damn hard.

 

[mrsayao]

U need a very sharp soldering iron tip... I'm waiting (still) on this website that supposedly ships out "samples" of surface mount LED's. I've yet to pop off the endcap to check out what kind of LED is used... you mind checking and posting pics?

 

[FAUXPUFF]

no no no, you do not need to remove the old LED!

you can remove the whole board that the LED is on.

you will have two bare wires sticking up.

now you can solder on a regular sized LED to the two wires!

what I do is cut the posts of the LED very short.

I also grind down the lens of the LED with a Dremel so it will fit.

Here is a picture of a lime green loongtotem battery:

(and yes, it is as bright as it looks, I can use it as a flashlight!)

 

[mrsayao]

you can remove the whole board that the LED is on.
you will have two bare wires sticking up.
now you can solder on a regular sized LED to the two wires!

What other components are on that board? the airflow sensor? Does your battery still last as long?

 

[FAUXPUFF]

All the board does is transfer the power to the LED.

It would be hard to solder a surface mount LED to bare wires.

So they solder the wires to the board, the SMT LED is mounted to the board.

Even though mine is bright, the battery life does not suffer much, LEDs are very efficient!

 

[ImYourSalt]

I love this idea too!
Thanks so much FAUXPUFF!

I just found some UV LED emitters online. I know what i'm buying come payday!!!

 

[ruuku]

If your going to piggyback a led, make sure that the board or leads leading to the board only have a positive and negative. M401s only have a positive and negative leads, while 901s have a positive, negative, as well as a signal lead. If you were to soldier the led directly i assume that the additional led would remain as a constantly closed circuit, or (less likely) as a constantly open, meaning that the led would be either on or off ALL of the time.