The new R420r 320w 15000k now comes standard with 120º lenses, rather than 90º.

Specifications

The R420r LED system utilize the latest in LED technology, including Cree XT-E and XB-D high intensity LED chips distributed in 2 different channels, offering unmatched performance and versatility.

LED Layout of each Pad (2 Pads for 130w, 3 Pads for 180w, 6 Pads for 320w)

LED Types and Color Spectrum

Photosynthesis 

Photosynthesis is vital to almost all corals and plants on the planet, but they do not just need any kind of light, instead they require light in a specific ranges of spectrum in order to survive and thrive, namely the wavelengths that Chlorophyll A and Chlorophyll B require, as illustrated in the diagram to the left, since they are the two most dominant forms of Chlorophyll found in corals and plants.

Enhanced Growth and Coloration 

The R420r Lighting system is designed to provide all ranges of color spectrum required by corals and plants to enhance their growth rate, improve their coloration and at the same time giving your aquarium the most aesthetically pleasing combination of colors. 
Comes in three different models, the M10000 with 10000K color temperature, M15000 with 15000K color temperature, and A8000K with 8000K color temperature the R420r will meet the requirements of even the most sophisticated group of marine, reef and freshwater hobbyists.

410nm/420nm Super Actinic 

The R420r Lighting system also utilizes the 410/420nm Super Actinic LED chips, the spectrum that's crucial for the success of any reef and water plant aquariums as it is required by Chlorophyll A for photosynthesis, where absorption peaks at 412nm.

Smart-Cooling

The R420r Lighting system is designed to be primarily cooled passively, the body of the R420r is crafted entirely in aluminum, serving as a large heat sink, together with an ingenious aerodynamic design, cool air is channeled through the bottom of the fixture and heat will be dissipated through the aluminum chassis. With a built-in temperature controlled system, active cooling will be engaged as needed to ensure optimized performance. 

User Programmable Photo-period Profile 

With 6 Time-Points, users can program their own photo-period for their aquariums, fully control the intensity of light their aquarium will receive from dawn to dusk.

Latest in LED Technology 

Utilizing the latest high performance high intensity Cree XLamp® XT-E and XB-D LED chips, equipped with 120° degrees optics, the R420r will consume less power yet producing more PAR (Photosynthetic Active Radiation) for even your most demanding corals.