Sunday, 24 July 2016

1mW + 5mW Laser Pens Review (Green, Red, Blue)

Flashlight Fiesta

1mW/5mW Laser Pointer Pens




Colour: Red, Green, Blue
Price: £1.50-£1.75 free shipping
Power: ? Green = 532nm diode / Red = 650nm diode / Blue = 405nm
Laser Rating: Blue = Class 2.  Green+Red = Class 3
Run By: 2x AAA
Description: 1mW/5mW Professional Laser Pointers AAA battery

First Impressions

I like the look of these pen style pointers. Memories of the crappy key chain red lasers of yesterday stick in the mind. The piddling low powered button cells were a pain and expensive to replace. These longer pen  shaped lasers offer the chance to use normal everyday alkaline batteries and rechargeables. They are cheap enough to buy but are they any good?

Always Read The Label
Ah yes, the laser warning stickers. It's all very strange. You see every single one of these pens has a slightly different warning stickers on the front.



And the reason for this? Well perhaps there is a difference in label due to where these are shipped. different countries and different regulations? Or these labels are just made up bogus ones? I'm going with the bogus label theory as on closer inspection most have spelling mistakes. And this also raises the question on if the power output rating is indeed what it claims to be.
Unfortunately I have no way of testing these pens to find out.

The build quality of all of these pen lasers is OK on the whole. Although one of  them rattles with the batteries installed and one  has a bad button connection and is liable to cut out at any point whilst you are pressing the button. The contact spring quality on all of these pens is suspect and inconsistent. They can be short and bent over. It doesnt cause too much trouble though.
These dud units were replaced by the seller after reporting the problems.

One noticeable difference between these four laser pens is that one of the 5mW greenss is slightly longer than all the others? The aluminium laser head is bigger and the laser aperture is slightly wider than the rest. Not sure why this is the case. Maybe a different manufacturer?.
I also discovered that both the 5mW greens were noticeably heavier than both the red and blue. Why? As the diode pill is press fitted into the laser main body it will be tricky to remove to have a look. Definitely something more substantial going on in the greens.

The pen on the far right is a bit longer?

Testing
As expected these four pens perform well. The warm up time for these lasers is about the same. its hardly noticeable. The silver push button can be a little hit and miss at times and has a tendency to rattle but all in all they are great for what they are. The green pens were the brightest (the eye is more receptive to green light)  followed by the blue/purple pen with the red seemingly the least bright. I dont feel as though the red is inferior, red lasers are known to be much less visible than green anyway. 
Distance wise, all four lasers could at least project a dot onto a building 50+ ft away. The extra long green 5mW was hitting a building some 200ft away.  Not bad at all. 
The question of whether these pens are all outputting the label claims still remains unanswered but judging by what the blue was putting out I would say that this pen is really a 5mW underneath. Either that or all the others have an exaggerated label! 
It doesn't really matter though.... Im not that bothered.

Rating: ✅✅✅✅  4 out of 5
Overall I'm impressed for what I paid for these. Unfortunately due to the two earlier mechanical failures this review has to be a four tick affair.
These are good value for money provided you dont get a dud through your door!