Review of Haikelite MT07S NW Now with coupon code and Thermal image.

Did you remove led to verify that?
MIke

No... I didn't see a need to remove it. So far it works perfectly.

So you do not know if there is a dent under a mcpcb.
Be aware guys. 2 MT01 dies because of that:

So I wonder how led shelf look like in MT07

you can fill the center with solder blob to let heat transfer to the pill.

How is the dent or hole... almost looks like a hole kill the light?

Solder blob to anodised aluminium? Not easy task.
Hole is 1mm deep, no thermal paste, rough surface with deep turning tool marks.
I wonder if in MT07 there is improvement or not.

Fries the LED due to poor heat transfer.

I keep this stuff handy….

^ It’s also possible that the “dent” is like a solder splatter on the led board resulting in very poor contact with the shelf. I can see something close to the positive wire that could be a solder splatter. This is much worse than the hole in the middle I think.

The hole from the rough pass drill, the rough surface during the facing of the MCPCB mounting surface and zero thermal grease, WOW! :person_facepalming:

3 strikes your out! :smiley:

Yeah I knew how or should say what the hole or indentation came from.

I'm wondering why that one is as large as it looks to be. And all that I have had a chance to see have had thermal grease.

Better looking silicone than in most I've seen though lol.

Either way it is an entirely different light.

When I go back to work Monday night I will put it in front of the thermal gun. See if I can get a look where the heat is transferring to. Provided there is time. It may take a couple of days depending on what is down when I go in.

Thanks for the heads up…I just checked my MT01 and same machining fail. :person_facepalming:

Isn’t that hole there on purpose for stabilisation during machining? So all samples have that, and it’s not a machining defect?

It’s a defect in the sense that it shouldn’t be there if properly made. I don’t know the exact processes, but the proper set of steps results in a flat shelf allowing the entirety of the led mcpcb to make contact with the shelf.

Having some 25% of the mcpcb not making contact in the most critical area of a heavily driven LED is Not good.

Yes true. I do wonder whether this centre hole is present in Haikelite’s CAD drawings. Perhaps it’s not there at all, and the manufacturer just did this for production reasons without consulting Haikelite…

Almost looks like when it started it was too deep then corrected quickly.

Surely someone is not turning all these manually.

Thank you for sharing this review. Based on another feedbacks, I was also a bit worried, but I still can’t wait to get my sample (hopefully only in a few days).

I have to admit that this light really surprised me.

I expected from the research I had done prior to it's arrival that this was going to be a tough review.

Once I noticed that I had to search for negative things to point out I had a blast just playing with the light.

Is it the greatest light on earth.... Of course not... But is it worth the price for what you get (at least for sure what my sample is)? Yes...

It totally is and I would purchase this light. With the sales and coupon codes making the price even less I may stock up a few.

I have several co-workers that see lights I have from time to time during testing and they almost always ask where to get one. Once they find they need to order online they shy away. LOL if I have some on hand that I got a good price on... Well I think you can see my point.

I am glad you got something from the information. I can promise you that at least my sample so far is trouble free and is as advertised in lumen count.

This is a good point... I got my sample from BangGood and I have not taken the head assembly apart. The LED is almost perfectly centered and unless I have a need or reason I like to leave them perfectly centered.

Yeah if I sit here for awhile I will get it just as centered. It may take a few minutes or it may take half a hour.

I want to put the head in front of the Fluke thermal gun we have in the shop at work before I do anything. Once it warms up a bit I should be able to easily see where the heat is and if it is stationary or if the pill and fins are doing what they are intended to do.

They will not allow me to use one of my own SD cards to record the images but I will try taking photos of the screen. This is also not allowed but I have been there awhile and most of the guys in the shop like watching when I do this so I can probably get a picture or two with my mobile phone.

I don't have any direct contact with Haikelite at the moment.. I may remedy that soon as well.

If anyone does this is a good question. It is possible they do not know.

Gotta know lol... Where did ya get it.. I have looked in spare time for that for several weeks lol for a light I am going to call Frankenstein if I ever get the time to complete it.

Either way I would love to keep a couple of tubes on hand.

I have been using it for about 4 years to fill minor F-ups in Aluminum, it machines really well once fully cured, so I tried it with and in my lights…as a potting material,body filler and to epoxy battery tubes together and such.

Amazon…. Amazon.com

Here is a pretty Extreme Test, I guess…