LED Grow Light is a LED light specifically designed on a printed circuit board in order to have the following advantages:

• clean wiring between LEDs: LED applications for DIY lights are usually an intricate web of wires. LED Grow Light has all the wirings routed on the printed circuit board and requires only to be wired to the supply circuit through practical headers.

• great thermal dissipation: the back of the printed circuit board is a large plane of exposed conductive material suitable for heatisnk application with thermal paste. Every LED's slug is connected by thermal paste to this conductive plane through vias in order to maximise the elimination of excess heat and ensure long life of the light (more than 6000 hrs).

LED Grow Light has the right balance of color rendering and grow spectrum

LED lights optimized for plant mass growth usually have a predominant component in purple light, sometimes annoying to the viewer.

Instead, this kind of light implement different LEDs with different wavelenght in order to ensure, as well as a good grow spectrum, a great color rendering. This makes those lights great for application where color grading is as important as the plant mass growth like for example, aquariums. In addition to this, there are even blue LEDs with attinic components in order to cover the whole light spectrum.

Last but not the least, every LEDs have a 120 degrees angle lens for an uniform and diffuse light emission.

Rated power of 27W is obtained from 9 LEDs by 3W each one for a total of 1355 lumens (in the standard conditions. See next parargaph):

LED Grow Light can be used both in constant current and constant voltage applications

In order to turn on a single LED, you must provide 700mA (at least 300mA) and a voltage across it at least of 3.3V.

The 9 LEDs mounted on the light are grouped in three fully indepentend channels, composed each one by three LEDs in series. That means that in order to turn on a single channel you need to provide 10V (or more) and 700mA and this can be done in two ways:

• with a constant current power supply that matches the carachteristics above;
• with a constant voltage power supply (at least of 10V), applying a current limiting resistor in series to the channel calculated with Ohm's law: (V_supply - 3.3 x 3)/ 0.7.

This particular configuration of the lights is deliberately intended user friendly in order to guarantee the maximum flexibility of the light. In this way you can combine more channel as you like and even use an external PWM supply to dim the LEDs.

For more detailed information please check the datasheet attached. If you have any questions or if you are interested in a custom LED light, feel free to contact me.

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