Nitecore EC11 RGBWUV, MELD-X with dual switches

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Location: NC, USA
Nitecore EC11 RGBWUV, MELD-X with dual switches

Since releasing the MELD-X driver, I’ve been on a modding spree putting it into every light I can get my hands on. This time I wanted to build one to use the new dual-switch feature, and the Nitecore EC11 is an ideal host. This light had been sitting disassembled in my bin for several months waiting for a worthy driver. Unfortunately the EC11 is the single most difficult to open light I have ever encountered, so it took some significant damage getting the head apart, but everything is still functional.
Here’s an overview video of the finished light:

I started with a MELD-X 22mm driver, and trimmed it down to the ~20mm size of the stock EC11 driver. I then mounted the stock switch board to it with a big solder blob to the ground ring:

The two switch signals were connected with 30AWG wire to the appropriate points on the driver:

I prepared a hybrid metal-core LED board with an XP-L, RGB XQ-Es, and a LHUV at 400nm. The star board needed a slight amount of trimming around the edges, and then one side notched out to make room for the switch board:

After insulating the back of the switch board with kapton, I installed wires for all the LEDs:

And installed the driver in the head. The cutout where the switch board goes is the only entry into the LED cavity, so all the wires pass up behind the switch board. I also added some strips of kapton tape around the LEDs for extra insulation from the reflector.

I then connected all the wires down to the LED board, and pushed them down to make room for the reflector:

The reflector needed to be drilled out to 7mm and then opened up slightly more with an exacto blade, then it fits around the LEDs. Unfortunately I couldn’t figure out a good way to utilize the existing hole in the reflector (for the red light in the stock setup), so it’s just empty:

The MELD-X board is slightly thinner than the stock driver, so I put solder blobs around the ground ring to get better contact with the battery tube:

The finishing touch was to install one of these magnets in the tailcap. I found these 12×2mm magnets on eBay and got them specifically to fit this light. It is simply superglued into the tailcap under the spring:

And now it’s capable of being mounted vertically or horizontally from steel objects;

This light is quickly becoming my new EDC favorite, as the dual switches make the MELD UI so much nicer to use. The 18350 battery and large reflector also help get the brightness up – at 1.75A this is now putting out a measured 633 lumens.
Thanks for reading!

Splott-Light's picture
Last seen: 6 months 1 week ago
Joined: 08/20/2015 - 20:15
Posts: 254
Location: Just Outside of England

@ tterev3,

Beware! Genius at Work!

I may never attain to this level of Modding, but it sure is impressive to see the Art in it.

Thanks for Sharing with us.

S-L Smile

Ouchyfoot to a New Member: Welcome CJ. Now you have to learn about buying an inexpensive flashlight and modifying it until it either blows up, or starts small fires on the moon…………

Hugh Johnson:
I, too, once lived a tragic and empty life. Then I found [portable] light.
You forgot to mention clothes. I sold most of my clothes to fund my light collection. This is actually fine, since I only go out after dark, and most people can’t see me.
Finally, I got my priorities straight.

kramer5150's picture
Last seen: 3 months 1 week ago
Joined: 05/19/2010 - 13:43
Posts: 2331
Location: Palo Alto CA

Awesome!! Very impressive. I was thinking about getting the 14500 version of this light. I think I will pass on it now though… can’t stand lights that are glued together like that.

LightRider's picture
Last seen: 3 years 6 months ago
Joined: 08/05/2015 - 09:52
Posts: 2007
Location: U.P. MI, USA

Nothing more frustrating than red, or any color for that matter, threadlocker!!!