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o-like sells red and 808nm DPSS as well as green. Do you think it is worth the money to get a 50mW DPSS instead of a 200mW regular laser?

ok but is there any different in terms of beam quality of 100mW red laser and 100mW DPSS red laser?

Hi all I have a question why DPSS laser are 10x more expensive than my regular laser pointer? even at the same power say both are 100mW but DPSS costing $150 more? What makes it so expensive and what's special about it?

where did he buy that laser diode?

Ok got it thank you so much guys!!!

So guys, if the seller said it has a build in driver why she said not to connected to computer PSU 5V because the current too big? any clue? I bought it at ebay o-like $32.99 + $4 shipping = $ 36.44 Do I need a safety gogle? I am not planning on looking straight at the beam though. pls advice...

I ask the seller she said it comes with driver already but I can not use my computer power supply 5V to turn it on because the current of my PSU is too big, I do not understand this, if it has a build in driver why still worry about the current being too big??

expensive? I thought it was cheap for 100mW laser line. Unless I know how to make it own self and have the knowledge about these kind of stuff.

please see the link below: 100mW industrial red laser line generator /red laser - eBay (item 180417537849 end time Nov-07-09 23:43:38 PST) I have bought it and already in my hand now I tried with 3 AA bateries it works very bright but I am not confident enough to do for long periods due to lack...

Here are some pictures of it. it is o-like product

I am really sorry. the operating current is 180mA ~ 200mA. operating Voltage : 4.5V ~ 5.0V output power : 100mW (Item number: 180417537849 at ebay) I don't dare to open what's inside it seems to be glued.

Hi all, I've got a 100mW industrial red line laser 4.5V ~ 5.0V 180mW ~ 200mW can I run it straight from 3 AA batteries? how about 3 AA super alkaline batteries would it be safe or do I still need a driver?

I am talking about a laser line generator, you know instead of a dot it projects a thin line

Do you guys doing laser scanning if yes pls tell me your setup in details. I am looking for laser line that is perfect for doing laser scanning.

ok so collimation lens and focusing lens are both the same? yes i'm talking about laser only.

can I use 405nm AR coated collimation lens for red and green laser diode?

Hi all, What is the difference between collaminated lens and focus lens? Do I need both lenses for a laser diode?