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Review of Thor H Dual Power

paul1598419

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This is my over due review of the laser I got on the free laser giveaway from tommy at laserpointerstore.com. This laser was sent by DHL which was very quick in getting this laser to me. The shipping cost me $20.00, but the laser was free of charge. It took about three days in total to arrive after it was sent.

The laser came with two unmarked but fully charged 26650 batteries. I confirmed their charge on my Opus BT-C3100 Intellicharger.



The laser has a screw appliance in the tailcap that can connect or disconnect the batteries while in the host. The polarity of the batteries is backwards from what I expected as the positive side goes toward the tailcap.

Here is a photo of the charge LEDS on the side of the host.



The first thing I did was to measure the power of the low and high power settings that are initiated by pressing the side switch once for low power and then two more times in quick succession to engage high power. There is also an SOS mode that can be engaged by pressing the switch down for five seconds.


This shows a measured power of 438mW


This shows a measured power of 1648 mW. I found that the divergence of this laser is much better than could be accomplished with a single element aspherical lens like the G-2. After further examination I found that the lens was actually a three element lens which would account for the lower power on high.

Next I took a spectrometer reading of the diode in the laser on low power. It read 444.92nm, or 445nm.



Here is a quick beam shot in doors in high lighting conditions. I'll add more as I can once I have ideal dark lighting conditions.



Here's a better beam shot in low power.



Thanks for having a look. :thanks:
 
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tommy

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great to see your review paul~ search around to see this review:crackup:

i'm surprised you had a spectrometer! and i thought you will disassemble it haha~ nice review, thanks.
 

BobMc

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Nice unit, looks like a WL clone, just a lot less expensive, sounds like a winner to me. :)
 

tommy

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price is not yet set actually:banghead: absolutely no way to be $30:beer:
 

Lifetime17

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Hi Tommy

A Thor with 2-26650's killer laser larger batteries capacity. Now that's really awesome pal . Can't wait to see them out ..

Rich:)
 

paul1598419

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Thanks all for the kind words. I'll try to add some better beams shots later tonight. If anyone has a particular question about this laser I will do my best to answer it.
-paul
 

paul1598419

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Thanks, Curtis. It is a very nice laser. I would recommend it to anyone here. I thought the price was $59.00, but it seems that isn't the case now.
 

CurtisOliver

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You're welcome Paul. :)
What is the price tommy? :thinking:
It helps us get an idea of value for money.
 

Podo

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Just a reminder, we don't have any association with https://laserpointerstore.com since they put three of our laser products on their website with the same product descriptions.

If you bought from laserpointerstore.com and the laser you received have any problem, please contact them for support.

The one year warranty only available to lasers bought from www.sanwulasers.com / www.sanwulasers.org

CHALLENGER SERIES
https://laserpointerstore.com/colle...-pointer-445nm-blue-1-6-watt-520nm-green-50mw

CHALLENGER II
https://laserpointerstore.com/colle...5nm-violet-445nm-blue-520nm-green-50mw-3-watt

Beam expander:
https://laserpointerstore.com/colle...er/products/3x-magnification-optical-expander

Podo
 
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astralist

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Hi paul,

Just one technical suggestion for your review:
By seeing the LPM graph, i can see that you are using TEC type LPM
Which has at least triple calibration transfer (all TEC-based DIY LPMs are in fact has at least triple calibration transfer)
So i think you should try measure it using your Scientech Vector S310 with AC2500 10 Watt LPM, as it should have only a double calibration transfer, producing more accurate result.

About triple calibration transfer, this is an example for Ophir product:
  1. Transfer of calibration from NIST master to working master: ±0.6%
  2. Transfer of power calibration from working master to commercial thermopile head under calibration: ±1.0%
    Total power calibration error of commercial head (95% of cases are within 2.0 std deviations): ±2.5%
  3. Transfer of power calibration from commercial thermopile head to TEC-based LPM: ±5% (I took Hyperion LPM for example)

more detail go to here:
Power/Energy Meter Calibration Procedure - Ophir Photonics

In addition to those above, the percentage may be higher if you are measuring laser other than the calibration wavelength.
Hope this helps :beer:


EDIT:
AFAIK, some TEC-based LPM makers don't even state the percentage of uncertainty of their product.
They dont even try to claim the uncertainty percentage as it might drove the customer away, IMO :crackup:
 
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paul1598419

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Thanks, astralist. The error on my Radiant is stated as 5% and is the only one I have set up for data logging. That is the main reason I used it. I need to do some more work with my Scientech, but with my health issues since my last surgery, I haven't been able to make the time to do it.
 




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