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Could you measure the current draw of the 500mW greenie too please? Seems you are now happy with your lasers :)

The truth is. Potmodding a greenie is very very risky. It works in some cases if you excactly know what you are doing. You need to know the max current for the specific IR diode in your laser and how sensitive these pots are. A simple touch to the pot may incrase the current by over 100mA which...

You know what that means? Nothing. Or it means the guy who had to bring it was too stupid to find the adress or just to lazy. That´s why they want to blame you or lazerer on this. Such things already happened to me a few times with different mail-services. For example once I was waiting for a...

Yes. DTRs diodes are epic. Mine reaches 1450mW with a 3 element lens at 1500mA. Guess I need a G2 lens too :) @Sigurthr What do you exactly mean with chilling your diode? Will that improve anything afterwards under normal temperature conditions, or will you just get a slightly higher output...

May I ask how many batteries did you test with this laser? A lot of Li-Ion batteries can´t hande that much current draw. They will be fine for lower powered lasers but cause a power drop with a 445nm diode. I was in about in the same situation as you after I ordered a M140 diode and a preset...

@Blord: The first image is what he got and there is no coating. Neither for blue nor for red. The secound picture is just an example to compare with.

I didn´t pay taxes to the customs. In Germany it´s to the customs they decide something appears suspicious to them or not. In this case the parcel wasn´t suspected to them so they just labeled it with a sticker and gave it back to the german post that shipped it to me. In the other case they...

Sure you can and you will learn a lot by doing it. This will be also a much better experience than just reading about how it has to be done. I´ve made a few pics while repairing a greenie. Some Pics of decanned IR diode / fixing a greenie There are also many other sources with more detailed...

Sorry I´m alread tired and was reading this wrong: So I understood: Or tell them thats it´s illegal to own one.... Already edited it.

Not sure you noticed I edited my post and added some more info. Edit: Sorry I understood it wrong. Oh well. All the myths floating around the net lasers are illegal in germany are because there was one case where a seller was stopped by a court to import lasers > 5mW. This caused all lasers...

I was pointed here a bit late, but it seems it worked for another one :) Yes, they want you to pay VAT, but they are liars. I ordered a lot of items all over the world in the past months. Not only lasers and often got a letter from the customs telling me there is no bill, but on some parcels...

Exactly. That´s why I prefer to use OpAmp based sink drivers for them. They have a lower voltage drop, are designed for case positive diodes though you can use them with case nagative diodes too, can be feeded by just one Li-Ion battery and seem to be more stable than the LM317 drivers. At...

What a scammer. Must be a chinese one as the German is really bad. He also edited the pics badly to remove the chinese letters.

I think by saing posting it´s meant ordering. So for how long will you be away from home? Maybe it will be more wise to order the laser to the location you will be for the next period of time. Lazerer is using a fast shipping method so you can expect the laser to be there after about 10- 14...

You mean the resistor? I think they are 0.3 Ohm each, so two of them will be 0.15 Ohm.

Fiddy, you can use this driver you were using previously for this diode. All you need is to solder a secound sink resistor in parallel to the existing one and heatsinking the transistor. This way i was able to feed such a diode with 1.2-1.4A by using one Li-Ion battery. Oh I noticed the other...

Ohh that´s less than half the price I paid for it. Good to know :)

There are different types of aluminum. Pure aluminum and sorts of aluminum mixed with different types of metals like magnesium. Normal solder will not make permament contact with pure aluminum but maybe with one that has magnesium in it or a different metal included. There is like said a...

There exists a special solder for aluminium you can use to solder two pices of aluminium or leads to aluminium. Used it once and it works flawless. But not having it now I´m using conductive silverpaint.

IIRC it´s because it´s in the middle of the visible spectrum and because the very first algae on earth were red absorbing green the best. They absorbed all the green in the ocean so all the other organisms living there had to deal with the left red and blue. Thats also why later green algaes...