Well, I did an EA8 already, so what could be different about modding an EA4? Four less batteries...
Here's the light torn down. It has the same thin star and thin heat sink plate. It has the same plastic holder for the heat sink, switch, driver/contact plate, so it's the same as the EA8. The problem is it's only four NiMHs, so I will be using an XM-L2 led.
Instead of getting rid of the stock plastic holder and the stock thin heat sink plate, I'm just going to back that thin plate with some copper.
That copper round will now fit tight in the body. I made that thing out of 3 squares of copper. I cut them to hexagon shape, flattened them and soldered them together with pressure. Then I filed and finally used a small sanding drum on the drill press, to get the shape. I had some aluminum rod stock the right diameter, so I used it to trace the pattern. I think it's going to work out well.
I will cut down the plastic holder so that when it's all together it will still be the same stack height. I believe there will be a lot better heat sinking with this. I will have enough room to slide a DrJones driver in and I will strip the driver so I can keep it as the upper contact plate.
I have an XM-L2 T6 3C and I have a 3amp DrJones driver. I will add chips to bring it to 4 amps (around 4 amps- 3040mA +350+350+350=4090). I am not sure if I will use the switch that is on the star already or the black one next to it. Both are momentary, but the black one has a nice soft click to it, so I may use it.
It's finished, here's a couple more photos.
The driver is now just a contact plate.
smd switch is in place
DrJones driver is glued in place
Other side, with the switch wires on
The whole pill, ready to go
It's finished, now for beam shots
Beam Shots. These are Mouseovers.
The Mouse Out is the Modded Light and the Mouse Over is the Original Light on Turbo.
All settings were the same on the camera.
The XM-L2 I used was supposed to be a T6 3C, but I doubt it. I think it was a cooler tint than 3C. The stock light was a warm. It was an EA4W, so this shows a good example of warm versus cool.
That's all Folks. I'm done.