Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers



Laser Pointer Store

Ebay Laser pointers

AlexStyl

New member
Joined
May 20, 2013
Messages
97
Likes
7
Points
0
Hey everyone,
So i have been reading in several threads and posts for an ebay laser like Hot 5mW 405nm Violet Purple Blue Ray Laser Pointer Pen Beam Light Lamp Powerful | eBay
and I want to clear somethings out in my mind.
Is there any chance for it, not to be a real 5mw laser? I have read that they can be 30-100mw laser.
So in general, a laser from ebay can be 5-100 mw?
Thanks.
Alex
 

hwang21

New member
Joined
Mar 27, 2013
Messages
2,351
Likes
96
Points
0
Hello roulie007,

Most laser pens found on eBay are much more powerful than 5mW. It is actually rare to find a true 5mW laser on eBay... :whistle: Most eBay laser pens seem to average from 30mW-80mW
 
Last edited:

hwang21

New member
Joined
Mar 27, 2013
Messages
2,351
Likes
96
Points
0
Correct. Also, eBay green lasers are (in general) not IR filtered, so be careful if you buy a green laser from eBay... there could be more IR than green light coming out of that aperture
 
Last edited:

Moe Ron

New member
Joined
Feb 10, 2012
Messages
428
Likes
37
Points
0
Nope, most of my use will be indoors :)
Greetings,

Make sure you get glasses for the wavelength of the type of laser you are getting. The wrong type for the one you get will not block the light properly. The correct wavelength will.


Moe
 

firelaser

New member
Joined
Dec 21, 2012
Messages
542
Likes
13
Points
0
in that 405 nm laser IR does not exist tho but that does not mean it cant be overspec.. if your just pointing that at say a chalk board or projector screen it would be ok to not wear goggles. a while ago i got one of these 405nm ebay ones. its less bright than geeen but it has cool effects with glow in the dark object and can actually have several different dot colors depending on what yo point it at 405nm bluray & 445nm blue laser glow in the dark poster - YouTube
 

grainde

Well-known member
Joined
Jan 29, 2012
Messages
3,155
Likes
1,189
Points
113
if your just pointing that at say a chalk board or projector screen it would be ok to not wear goggles.
It is not advisable to use a pointer over 5 mW in a classroom or presentation environment.

a while ago i got one of these 405nm ebay ones.its less bright than geeen...

Just because it isn't as bright, doesn't mean it's not as powerful. On the contrary most 5 mW ebay greens average around 30 mW, however most 5 mW 405's will exceed 80 mW. I metered mine at 134 mW...Be careful. :beer:
 
Last edited:

firelaser

New member
Joined
Dec 21, 2012
Messages
542
Likes
13
Points
0
true ebay can be very inconsistant with the power of the laser, which is why they may be dangerous . also one factor i believe for the inconsistency of the power is that you cant sell lasers of over 5mw on ebay normally.. one way to check is to email the buyer and ask what is the true power of this laser? is it ir filtered ? often they will write back and tell you that yes it is in fact 75mw green or 50mw green ect.. but you can never be sure unless you have access to a power meter

these goggles will work for a 405nm http://www.amazon.com/gp/product/B0...89&creative=9325&linkCode=ur2&tag=wootoy07-20
 
Last edited:




Top