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Hello, I have the following questions about a TEC Module (Peltier Module), hope you can help me with them: 1) I've read that this modules are current dependent, but I've also read they are somehow voltage dependent, which one is correct? If I want to get more temperature delta between the...

I searched some info in the forum, hope did well, but couldn't find any appropriate information for my questions. Was wondering if I want to build a laser with the IR ( or near IR, whatever they are) diodes found on the 20x burning units: *How much power are they capable of outputting? *How...

Hi, just wondering: If I cool with a thermoelectric pump (TEC) my diode housing (Aixiz), what's the best way? Should I put it directly over the cooling surface, or mount the housing in a heatsink, then the heatsink over the cooling surface? Will the cold temperature reached by the peltier...

Hi. I'm in need of help, I've just wasted 6 22x diodes trying to do a laser pointer. 1) When I turn on the circuit (the capacitor is discharged, the diode was connected prior to the power source) it shines great, but then it dies, turns into a dim $1 laser. I'm measuring the current and it's...

Hello, have my laser setup, running at 420mA, its an open can, think is like that; came from a LG GSA H55 22X double layer DVD burner. The problem is it can't burn anything. Its focused and all but nothing... may it be damaged? Greetings

Hi, I would like to know what is the minimum necessary Optical Density needed for a red diode laser if it is powered from 250mW and ahead... I don't have a clue about this and I am afraid of becoming blind. Thank you in advance

Reliable laser company? Since I lost my protective goggles for my red laser I searched for new ones, found this incredible offer... Protection Glasses for 650nm Red Laser but don't know how reliable are those. says OD 4+ and wavelength 632nm-650nm Does anybody knows them? Greetings

Well after researching in the forums an the web I finally got two pairs of glasses i could buy and ship to here that were good to protect my eyes. I'm posting because I need advice between which one of these two should I pick up...

Hi. I got this two driver models of LG: -LG GSA - H54N -LG GSA - H55N My question is how I can know the the wavelength that this red lasers use because on Dragon Lasers they sell two diferent types of glasses for red beams...

The title says almost all, What wound happen if I take a laser of this Dvd driver geeks.com/details.asp?invtid=BLK-GH22NP20-BULK&cat=DVD at 416 mA and point it to my skin, and also what if I point it to an open wound?

Hi, posting to know what kind of eye protection should I get for this laser diode: geeks.com/details.asp?invtid=BLK-GH22NP20-BULK&cat=DVD   I've seen some glasses at DealExtreme but as I know nothing about this topic(lasers), I only know that I've always liked the idea to build one. Where...

I was wondering if is there any alternative about to the conventional Aixiz or other brands housings? I mean, can i house my diode on other kind of housing, or even make my own?

Hi, first of all want to said that what a great forum for laser enthusiasts is really complete and full of tutorials. because of that I get very motivated to do my own laser thing. Went to my local store and bought the following dvd burner drivers. I'm posting these photos because i need your...