Overdriving PR base red LEDs?

[Shirley]

I just got in some red LEDs (PR2-R2-4.5V RED LED FlashLight bulb). I found a thread warning they were pretty dim, and on a 2 C cell, they are.

I also recently got a 4AA small lantern. I pulled the bulb, which says it's 4.8V. Now, I assume 4AA will be overdriving the 4.5V red LED? That may reduce bulb life, but how significantly? Any other potential problems?

Thanks!

 

[Shirley]

Text from Super
Bright LEDS:

Drop in replacement for 4.5 Volt Flange Base flashlight bulbs
With 2 Super Red LEDs
For 3-Cell lights, Draws 30ma, bottom contact must be connected to positive

 

[wwglen]

I use one in my son's 2-aa Pooh flashlight and while it is dim he really likes it.

Haven't had to change batteries yet.

wwglen

 

[LEDninja]

I have mine in a 4AA flashlight with NiMH batteries. Have not used it much so cannot say if LED life is affected.

 

[Shirley]

Thanks. I guess, for the price, I should wring a couple of them out now, so I have time to get more before I deploy, if they're worth it...

 

[abvidledUK]

I've used two in two PIR night lights, 4.8v nimh, absolutely no problems after two years now.

One under bed, illuminates floor as you enter room, one by en-suite door in bedroom, so used most nights several times.

 

[Shirley]

Awesome, thanks.

Looks like I'm a little past 50% after 7.5 hours. :)