The HD2010 I received from Tmart has a poorly focused beam. I did some experimenting to see what I could do to fix it and I’m curious if everyone else is seeing the same thing.
Here is what I found.
This is the reflector from my HD2010.
The emitter MCPCB is 16mm. The base of the reflector is 18mm. Here is a picture of the MCPCB sitting on the base of the reflector. The point here is that you must have a spacer between the MCPCB and the reflector to allow room for the wires.
I wanted to place the LED deeper into the reflector to see if that corrected the focus issues, so I used a 25mm MCPCB.
First, I tested the reflector on the 25mm MCPCB with the stock HD2010 plastic alignment/spacer ring.
Then I remover the plastic alignment/spacer ring and set the reflector directly on the 25mm MCPCB. Notice the wires- the reflector just fits between the MCPCB solder points without shorting them together.
And finally, here is the hotspot with the plastic spacer and then without the spacer.
It’s not easy to see in the beamshots, but eliminating the plastic spacer drastically improved the focus. With the spacer installed, the hotspot is wide, blurry, and ringy. Without the spacer, the hotspot is much smaller and even, without any artifacts.
Is this how all the HD2010s look? If everyone got the same reflector as me, why are there so many people happy with this light? It looks terrible.
It looks like the only way I’ll get this light to focus correctly is to replace the 16mm MCPCB with a 25mm one so that I can butt the reflector base right up against the MCPCB and still have clearance for the wires. That means I’ll have to shave down the top of the pill since it has an 18mm wide, 3mm deep recess machined in it for the 16mm MCPCB. And I will have to figure out a way to keep the 7.7mm reflector opening centered on the LED.
Why is this slight so popular?