12х LED assembly for reef tank v3.0S
Version 3.0S Product code: 12xV3.0S

The 12xV3.0S LED assembly is the state of the art light source for your reef tank. Its creation was the outcome of years of research, as outlined in this article:
Light in the Reef Aquaria


Availability:  Out of Stock

Color Max. current Max. voltage drop on the chain Wavelength /
Color temperature
LED emitter type
Power connector X1. Contact #1 of the conector is marked with a dot on the MCPCB.
Turquois 1000ma 3.5V 505-510nm Luxeon Rebel ES LXML-PE01 bin: L4R
Blue 1000ma 3.5V 470-475nm Luxeon Rebel ES LXML-PB02 bin: J3R
Violet 800ma 15V 400-410nm
TSLC C3535-U-UN 750-800mW @ 500mA
TSLC C3535-U-UN 750-800mW @ 500mA 2pcs
TSLC N3535U 850-900mW @ 500mA
Power connector X2. Contact #1 of the conector is marked with a dot on the MCPCB.
Red 700ma 2.8V 630-645nm Luxeon Rebel LXM2-PD01 bin: J5Y
PC Amber 700ma 3.5V ~590nm Luxeon Rebel LXM2-PL01 bin: N2S
Cool White 1500ma 6.4V CCT:6500K Luxeon Tx L1T2-6570000000000-CT bin: T1AR 2pcs
Royal Blue 1200ma 6.0V 445-450nm Luxeon T LXH1-FWRB bin: D04R 2pcs


Total power consumption, W: ​ up to 40
Board dimensions:  
             Length, mm / in   70 / 2.76
            Width, mm / in 60 / 2.36
            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 35 / 1.23
Completely solderless assembly. Matching connectors are included. YES

​The LEDs are placed on a unique patented SinkPADTMII MCPCB which provides the best available* heat conducting path.

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)
  • 12 power LEDs with high
  • 9 LED types combined in 7 independent channels, to provide unique control over spectrum*
  • Sufficient radiation in true violet range, to provide for best coloration, fluorescence, and coral growth*
  • Complete control, to provide a cooler or warmer white, through the use of PC Amber LED*
  • A unique SinkPADTMII metal board with an improved heat path (up to 180W/m.K from the LED crystal to the board and an improved heat transfer from board to heatsink), can be used with passive cooling heatsinks to achieve a most reliable fanless solution
  • 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 November, 2016

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.