The two photos show the feasiblity of using CR-30 units as the main light sources for nano aquariums. The left photo is a 45cm standard saltwater tank with a CR-30 on it. The LEDs inside are 3 x 450nm and 3 x Cool white. Although the light fixture is 30cm long, it provides not only sufficient light coverage but light penetration to this nano tank composed of mainly LPS corals. The right figure is another 40cm standard freshwater tank with a CR-30 unit. With 3 x cool white LEDs and 3 x neutral white LEDs, the tank was lit up brightly demonstrating the warm color that a beautiful freshwater tank should be. These two photos are powerful evidence that ComboRay series products are not only suitable serving as supplementary light for big tanks, but they are also qualified serving as main light source for small to medium sized aquariums.
Surprising effect of an actinic light using two CR-60 with 400/420/450nm LEDs on a SPS-dominant display tank.
The left figure shows a SPS-dominant tank which locates in a famous multiple LFS in Tainan, Taiwan called "旭海水族". This 4.2 ft tank was orginally lit up with two old version Blaze series M-120S units. Due to the dominant white LED distribution in S model fixtures, the tank although looked bright enough to keep SPS corals, but the manager of the store want it to be bluish in color. After discussing with us, they decide to purchase two ComboRay series, CR-60 units, to combine to a 4 ft long fixture to serve as the actinic light source of this tank. They chose 2 x 400nm, 5 x 420nm, and 5 x 450nm LEDs and installed them with 90 degree optical lenses. Due to the use of 420nm LEDs, the light brought an elegant purplish hue into this tank. It was clearly observed that fluorescence reaction of most SPS species was significantly enhanced under the illuminating of this new light. The 90 degree lenses increased the light penetration without sacrificing too much light coverage making this 4 ft fixture a qualified actinic light source. The manager of the store was quite satisified with the effect as well as the product quality. Below are some photos of the light installation.
Kios, a member of pH 8.4 forum, shared a post about unpacking a ComboRay CR-30 unit which is used for his 18" cubic tank as the supplemental light source. This tank was originally illuminated by an old version Blaze series M-45C and a double-tube T8 lamp. Kios was not satisifed with the light intensity and the color of the T8 lamp. He decided to replace this T8 lamp by a ComboRay CR-30, which is composed of 420nm Violet x 1, 450nm Royal Blue x 2, 7,000K Cool White x 2, and 4,000K Neutral White x 1. Kios is quite satisfied with the effect that CR-30 brought to his tank. According to his description, CR-30 improved the light intensity and consumed only 12W power which is apparently less than his former T8 lamp did.
As you can see from the figure, this CR-30 is much narrower than the neighboring M-45. The rotatable mounting stands allow the fixture to be tilted in any angle that can provide the best light mixing with
the main light source. The photos below show the unpacking of the product.
The two photos are taken by Mr. Aono of GRASSY AQUA from Japan. They are two CR-30 units which are scheduled to be installed on a 45cm freshwater tank full of plants. According to Mr. Aono, he thought that ComboRay series is a new product of new concept which is not only a great choice as supplemental light source but also can provide plenty of combination options. The new test results of this Combo system on the 45cm tank will be posted soon!
As the left photo shows, a 3 x CR-30 lighting system has been builded for testing the feasibility of multiple ComboRay units being applied to real tanks. Unlike the usual T5 lamps with tubes of fixed light spectrum, each ComboRay unit can be considered as a spectrum-changeable light to replace the T5 or T8 tubes for either white light or actinic light source. Users can adjust the light spectrum freely by choosing LEDs required to accommodate the light to their own tanks. Like this 3 x CR-30 combo-system, the main light source in the middle is composed of 3 x CW and 3 x NW to provide not only suitable light intensity but also sufficient yellow to red light distribution. With regard to the two actinic lights at two sides, they are composed of 420, 450 and 470nm LEDs which can be interlaced to obtain a even light mixing with the main light in the middle. This combo-system is certainly the best lighting choice for most tanks. In our opinion, this system could be a great option for frag tanks which don't need too intense light but require suitable and/or correct light spectrum for coral coloration and growth. For deeper tanks (depth>60cm, 24"), the installation of 60 degree optical lenses will allow the light to penetrate deeper. With the 30cm x 30cm x 2.5cm (12"x12"x1") slim appearance, it will certainly make your aquariums a different look from what they were used to be.