DHOM 532nm 300mW Analog Lab Unit

This is my first review, please excuse the bad photography.

Specifications:

● Wavelength： 532nm
● Output Power: >300mw
● Beam Mode： TEM00
● Cooling Mode： TEC+Fan
● Power Stability： ±3％rms，4hour
● Warm-up Time： 15min
● Beam Divergence,Full angle： <1.5 mrad
● Beam Height At Aperature(1/e2 Representative Value)： ～2.0mm
● Beam Height From Base Plate : 26mm
● Pointing Stability After Warm-up: <0.05mrad
● Operating Temperature: 10～34℃
● Power Supply(80～260VA)： 2A
● ANALOG Modulation： 10KHZ

Packaging/Shipping:

This was very well packaged. Enough foam to survive the trip from China to Vancouver without any damage. Took only 3 days to arrive.





Operation:

Very simple to use, connect to a wall plug, then apply 5V modulation. (I used an old USB wall-plug charger for the 5V modulation) Turn on the switch and your done.

This was the included operation manual:



Gave me a good laugh

Appearance:

This unit was a lot smaller than I expected (my first lab laser) and I am very pleased with how it looks
The beam and dot is a lot brighter than I could have imagined, my only other 532nm lasers being a 78mW and 50mW (and loads of those 5mW pens)
It is also fairly light at 780g.
Dimensions here: (Link)











And the laser with my scanners
(wouldn't re-size properly)

http://i.imgur.com/DvhTI.jpg
http://i.imgur.com/0a7rt.jpg
http://i.imgur.com/9cqJY.jpg
http://i.imgur.com/QxDh9.jpg
http://i.imgur.com/9Ky7q.jpg


Price:

250$ USD shipping included from Meierlight, he accepted my offer of 220$ (DHL got me for 10$ brokerage fee's at the door). Very good price for this unit

(Link)

Other Thoughts:

• The fan on the back is extremely noisy (nothing you can't drown out with loud music )
• No key for the key switch included (wouldn't have used it anyways)

Service:

Fang, Meierlights sales man was very prompt with email responses and answered all my questions to the best of his ability, was very happy with the communication

Bottom Line:
Great unit, good price per mW.


Thanks for reading!

Edit: I finally got a LPM

Averages 355mW during 15 minute warm up, averages at 380mW after warm up.

Wow, I actually just bought the exact same laser, I love it except for the beam specs. They could be better. I paid $250 though

Yeah, the beam specs could be better, hopefully it will match that of my 445nm and the 640nm I plan to buy, so no fringing

EDIT: Did you LPM it? I don't have a meter yet, and i'm wondering what power yours is at.

Yeah I have the same plan to use in my scanner. Ran out of money though... sooo projector is on hold for now. :/

bhwollen said:

Yeah I have the same plan to use in my scanner. Ran out of money though... sooo projector is on hold for now. :/

Click to expand...

Yeah, this projector is costing much more than I originally anticipated. The results so far have been worth it though.

Yeah, im loving mine. need some better galvos though...

I actually found a great deal on a 300mW 635. Just waiting to buy it.

bhwollen said:

Yeah, im loving mine. need some better galvos though...

I actually found a great deal on a 300mW 635. Just waiting to buy it.

Click to expand...

Yeah, I looked at 635nm as an option, the beam specs scared me off though, I'm using the DT-30 galvos and it's great, no flickering at all. I would have gone for the DT-40W, but i'm trying to build this on a budget

yeah, but the price difference of 635 to 640 is insane.

bhwollen said:

yeah, but the price difference of 635 to 640 is insane.

Click to expand...

Yeah, 800$ for 400mW of 640nm is pricey, what did you get quoted on the 635nm you're going to buy?