12х LED assembly for freshwater aquaria v4.4F
Version 4.4F Product code: 12xV4.4F


Availability:  Out of Stock

The LED assembly is improved and ready for sale. The pictures with the newly installed LEDs will be available after the Chinese New Year holidays, i.e. after 9 February 2017. 

Differences from Rev. 12xV4.2F
1. LED assembly spectrum is expanded with new Violet LED. 
2. The spectrum of the LED assembly is expanded with additional Deep Red LED.
3. The true Blue LED with dominant wavelength 475-480 nm is now installed.
4. The Blue and the Turquoise LEDs replaced with the newest Luxeon C color technology. To find out more details please look into the datasheets available in the description of the LED assembly. 
5. A specially designed PC Amber LED will insure the best possible control of CCT. 
6. The MCPCB now has a better thermal conductivity. 
7. The immersion gold-plating of the pads MCPCB with a chemically precipitated nickel sublayer (ENIG) now provides the best quality and reliability of soldering. 
8. The solder mask Taiyo PSR-4000 LEW7S with best whiteness is the most stable solution against UV radiation. 
Color Connectors
of chain of
Max. current Max. voltage
on the chain
Wavelength /
Color temperature
LED emitter type
Deep red X2 pin1 -> X1 pin8 1000ma 2.6V 650-670nm C3535M-SNL1-E1H11N, 340mW up up @ 350mA
Red X2 pin2 ->
X1 pin7
700ma 2.6V 620-630nm C3535M-RNL1-E1H11N, 51.7lm up @ 350mA
Turquoise X2 pin3 ->
X1 pin6
1000ma 3.0V 496-500nm Luxeon C L1C1-CYN1000000000, L20
Cool white X2 pin4 ->
X1 pin5
1000ma 10.8V CCT7000-8300K C3535L-C0L1-A1G11H, 148-156lm @ 350mA, 3pcs
Cool white X2 pin5 ->
X1 pin4
1000ma 10.8V CCT7000-8300K C3535L-C0L1-A1G11H, 148-156lm @ 350mA, 3pcs
Blue X2 pin6 ->
X1 pin3
1000ma 3.3V 475-480nm* Luxeon C BLU1000000000, E40
PC Amber X2 pin7 ->
X1 pin2
700mA 3.6V 585-590nm C3535M-ZZZZ-ZZZZZZ, 65,8lm up @ 350mA
Violet X2 pin8 -> X1 pin1 800ma 3.7V 410-420nm
C3535U-UNL1-A1G11H, 850-900mW @ 500mA

The binning info of TSLC C3535L/C3535M. 


Total power consumption, W: ​ up to 39
Board dimensions:  
             Length, mm / in   70 / 2.77
            Width, mm / in 60 / 2.37
            Height, mm / in 7.4 / 0.29
Mounting holes diameter, mm / in 3.3 / 0.13
Mounting holes spacing, mm / in 47.5 / 1.88
Weight, grams / oz 33 / 1.16
Completely solderless assembly. Matching connectors are included. YES


The LED assembly must be used with matching LED drivers. If using with ReedLedLab controller and drivers, control channels on the drivers can be configured by jumpers. Instructions.



  • Full-spectrum
  • Small dimensions (size is determined by secondary optics)
  • 10 power LEDs, latest C35 generation by Semileds
  • 2 newest LEDs Luxeon C color
  • 7 LED types in 7 independent channels, to provide unique control over spectrum*
  • Sufficient radiation power and suitable spectrum for best coloration and growth in a freshwater planted tank
  • Minimized “Disco effect”, due to densely populated LEDs and the use of hybrid secondary optics with diffusers
  • A completely solderless solution simplifies the assembly
  • 100% quality control for all LEDs on the assembly



“*” No competing solutions were available on the market by January, 2017

Make a DIY LED fixture using our LED assembly: Video Tutorial:

Note: – the tutorial was made using rev. 2.2 of the 6-channel LED assembly and a different connector. You can also watch our video tutorial on how to use the new connectors.

Using the KRP crimper tool:

Theoretical and practical aspects of LED lighting

What type of light is available to corals in nature? What type of light do corals require for growth and for best coloration? Under what spectrum will your reef tank look its best? You will find the answers to these questions in this section.

All you need for DIY

Do you want to build a DIY LED fixture that would best fit your tank’s requirements, using the state of the art technological achievements and the highest grade components? You will find the answers to these questions in this section.


Building a DIY LED fixture has never been so easy! Find the answers to many questions that hundreds of others have asked. Everything you want to know about building DIY LED fixtures is available in this section.