Ceres J

White, green, blue and red spectrum lights

Ceres J is a short distance supplementary growth light system specifically developed for harsh environments. It’s ideal for hot, humid and wet greenhouse working conditions.

Ceres J uses white, green, blue and red spectrum lights. There are 6 LEDs and each LED colour can be set at factory. The overall intensity can be adjusted from 20% – 100% by regular TRIAC based wall dimmers.

Light bars can be screwed in Edison plus like ordinary light bulbs. Input voltage can be anywhere between 100 and 240VAC.

Typical life expectancy of light fixtures is over 70,000 hours.

I am the scientist at a large greenhouse, We are one of the biggest herb grower in Ontario. We are using artificial lights around the year to shorten the grow cycle.

Yunustech showed us their new CERES light. Yunustech’s lights do not have mechanical fans which is a big advantage for green houses. As happens in many greenhouses, occasionally we need to use pulverized substances which accumulate on the propellers and cause premature failures. Another very nice feature is that Yunustech’s lights are dynamic. The wavelength combination are controlled from control room wirelessly. We are in the process of developing our own lighting programs. The positive effect of the wavelength control became evident within the very first week. I am looking forward for Yunustech’s new series of green house lights.

Dr. Leo


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The purple glow seen at the Grimsby greenhouse is the combination of red and blue light. De Leonardis said greenhouses that have LED lights tend to have static lights with a fixed amount of blue or red. For instance, a greenhouse growing tomatoes may use 30 per cent blue and 70 per cent red light. He said Freeman Herbs is one of the most advanced greenhouses in Canada because it uses dynamic LED lights. They allow De Leonardis to change the ratio of colours to whatever he thinks would help the plants from anywhere wirelessly.

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