T5442 wavelength

[kuzco]

Hello,
I have several original HDW (T5442) and some Chinese HDW (4631C, 6238X) in place.
For my understanding the T5442 is using by night an IR light which is not visible by night, correct ?
Have no idea which IR light the 4631 is using.
However, can I add an additional IR light for the T5422 ?
Which wavelength is used for the T5442?
Does this makes any sense?

Any hint is welcome.

KR

 

[wittaj]

You need the 850nm additional IR.

This is a favorite here:

Review- New Design Tendelux 10 Watt IR illuminator.

So I purchased one of the new redesigned Tendelux Ir Illuminators to give it a try. You can see it here I have two other older Tendelux IR illuminators that are still running strong after almost 3 yrs in use. One is an 8 watt model, and the other is a 4 watt model. And they've done a fine job...

ipcamtalk.com

 

[kuzco]

Thanks for the hint. Will check where to buy.
On amazon.de it costs 92.- Euro (approx. 95.- US Dollar). On Amazon.com it is only 32.- US Dollar.