I came across this website that sells 200mW lasers for like 40$ However I am wondering is it reliable? Has any one bought a laser from this site before?

Thanks,
Graham Russell.

I have 2. One puts out only about 145mW, but the other one does better & gives a steady 180mW's

those explode when not used correctly be carefull :P





OK OK I"M PLAYING AROUND THEY WORK GREAT

If you're talking about the 200mW Red laser.... it is a good deal...
But if you live in the USA you are out of luck buying from them...

There are tons of posts on this forum dealing with that dealer and
that laser... you will need to do a little research to help yourself... 8-)

Jerry

how many do you own there Jerry ;D and watcha call them :-?

I just sold them all............ I have nothing left..... :'(


Sure............... scare the new members.... :-/

Jerry

just so a search for "dilda laser"

Does anyone know if these have IR filters installed? I thought 200mW lasers were supposed to burn things. I was going to use mine to light fireworks on the 4th of July. Even though I focused it to the smallest point I could, I couldn't even light a match. Any suggestions?

Why would it have an IR filter?



3700.

An IR filter in that one?? that would be interesting......as for not burning it's probably underpowered for what it is rate at; do you have a LPM to test?

diachi,

I was reading that since IR is invisible to the naked eye, it could cause eye damage without me even knowing about it. I already ordered safety glasses for red and green lasers, but do these also block IR?


electron,

I don't have an LPM yet. How much do those run? Do you know a good source for buying one? The 50mW 532 nm laser I also bought from deal extreme seems pretty powerful, but I heard this is due to the eye's ability to see green light much more easily than red light. Maybe I will look into investing in a LPM. Thanks.

The reason he asked that is because a red laser is (usually) just a laser diode, and therefore produces no IR like greens, which use an IR pump diode and crystal set.

Prototype,

So I don't need to worry about IR from my red laser? Thanks. I do have a 50mW green laser and I just ordered a 200mW green laser as well. I should probably make sure they have IR filters on them or add one if it doesn't right? Thanks for your help and sorry for the stupid noob questions.

I'd make sure they have an IR filter, yes. And don't worry, we were all new once.

Anyone notice the date on this thread?

Yeah, I know the thread is a year and a half old, but Deal Extreme is still selling the same laser. I know from other forums that most people hate it when noobs don't bother to search existing threads before asking the same questions.

I finally got my safety glasses from Dragon Lasers. They practically filter out the red completely, to the point where I can't see the dot. I had to take off the glasses to see if the laser was working! I tried messing with the focus until I could finally see it. Its very interesting that the laser is not actually focused real well when the beam is the narrowest (smallest red dot) with the glasses off. When I was using the glasses and playing with the focus, I was able to focus the laser to a pin point and burn dark colored objects. I took off the safety glasses and the beam seemed pretty wide. Is this because the lens has a limited "depth of field" (in camera terms)? Would that mean that the beam is narrowest (without the safety glasses) at the hyperfocal distance?

I was also wondering if the safety glasses from Dragon Lasers are any good. I had a bit of a head ache after messing with the laser for a bit. Is the laser emitting any IR or something that the glasses don't filter?

Thanks for any help you guys can give me.

I bought this DealExtreme: $44.11 Focusable 200mW Red Laser Pointer (1*18650 Included) a week ago.
Going to make a video review when i get it.

Oh and first post ever! (for me)