Even light levels
Ensure every plant receives optimal light, even as conditions change throughout the day.
Optimal light levels for each plant, all year round
PARperfect
PARperfect is a flexible shading solution designed to provide precise light management in greenhouses. By allowing continuous shade adjustment from 20% to 100%, it ensures that crops receive the right light levels regardless of external conditions. The system uses a dual-screen setup, with the PARperfect climate screen offering high diffusivity for even light distribution. This helps protect crops from direct sunlight, maintain consistent PAR levels, and promote uniform growth, resulting in improved crop quality and reduced lighting needs.
The difference uniform light makes
Why PARperfect fits modern greenhouse growing
Maximized PAR sum
Increase the total amount of usable light for photosynthesis without compromising crop health.
Healthier plants
Diffuse direct sunlight to reduce plant stress and prevent light damage to sensitive leaves.
Expert guidance
Tap into our Climate House Advisory for tailored support at every stage of your lighting strategy.
How PARperfect Works
PARperfect is a dual-screen light management system that combines two complementary climate screens working together as one dynamic solution. The system continuously adjusts shading levels based on incoming light, ensuring the crop receives the right amount of usable light throughout the day.
By pairing a diffusing screen with a variable shading screen, PARperfect spreads light evenly across the canopy while limiting peaks from direct sunlight. This approach protects plants from light stress, supports consistent photosynthesis, and allows growers to achieve higher overall PAR sums without compromising crop health.
With PARperfect, growers gain flexible, crop-level light control that adapts to changing conditions rather than relying on a fixed shading position.
White paper
The effect of varying levels of diffused light in floriculture
Light is one of the most important climate factors in the greenhouse, but it’s not just about how much light your crop receives. It’s about how that light is distributed. This white paper explores how diffused light improves photosynthesis, reduces plant stress, and creates more uniform development across the crop. You’ll gain insights into setting the right light levels for your plants, understanding the balance needed for healthy growth, and the outcomes growers are seeing. Results include up to 10% faster growth, more even plant development, and energy savings of up to 60% when using a double screen solution.
Precision lighting makes all the difference.
Discover how growers are using PARperfect to deliver uniform light and healthier crops.
22 May 2024 | Potplants
Tangchao in China
The Xiamen Tangchao Horticultural Breeding Center is preparing for the 2024 Xiamen International Flower Trials, aiming to showcase top-tier flower varieties. Leveraging advanced climate control technology from Svensson, they prioritize delivering high-quality seedlings and optimizing greenhouse functionality. Recognized for their seedling quality and sustainable practices, Tangchao remains committed to collaboration for further growth and expansion.
01 Aug 2023 | Potplants
Plant Company in the United States
Sometimes you have to be willing to make a move. That might be Frank Paul’s motto. He’s been willing to move as a young intern from one continent to another. To start his business, he moved from Ohio to the Blue Ridge Mountains. And as a grower, he’s moved from fixed diffused glass to a highly automated, movable screen greenhouse with a PARperfect setup.
25 Oct 2023 | Orchid
Satter Orchids in the Netherlands
In the world of orchid cultivation, Satter Orchids is a name known for its commitment to innovation. They recently replaced 3 out of 5 hectares of greenhouse space with new climate screens. The majority of this 3 hectares is equipped with three Svensson screens, with PARperfect as an important part of the screen installation. The installation was carried out by Huisman Screen Systems.
Curious what better light control could do for your crops?
Let’s talk about how PARperfect helps create consistent light levels, protect plant health, and support stronger, more uniform growth across your greenhouse.
Frequently Asked Questions
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What does PARperfect actually do?
PARperfect keeps light intensity at the ideal level for your crop — not too much, not too little. It does this by adjusting two screens together: one that diffuses the light and one that shades it. The system balances light and temperature minute by minute, so photosynthesis can continue at an optimal rate.
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How is this different from a standard shading screen?
A regular shading screen cuts out a fixed percentage of light. PARperfect adapts dynamically, combining screens so the light stays constant even as outdoor conditions change. Instead of chasing the weather, your crop gets stability.
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Why does consistent light matter so much?
Plants respond to total daily light, but they also react to fluctuations. Sudden peaks and dips cause stress, uneven growth and wasted energy. With steady, diffused light, you get more predictable growth, better colour, and higher yield uniformity.
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How does the system know how much light to let through?
PAR sensors measure incoming light levels. The control system compares that data to the target PAR value and adjusts both screens automatically — opening one, closing the other, or changing their overlap to maintain the setpoint.
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Does PARperfect only control light?
No, it also helps control temperature and humidity. By modulating shading rather than simply closing screens, it avoids overheating and reduces the need for ventilation or shading extremes. The result is smoother climate control overall.
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Can PARperfect integrate with existing control systems?
Yes. It can run as part of most climate computers, using standard input signals and screen motors. The concept isn’t about new hardware — it’s about a smarter strategy for using what you already have.
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What kind of results do growers see?
More uniform crops, fewer light-related disorders, and improved energy efficiency. Because the light is steadier, photosynthesis is more efficient, leading to stronger, more balanced growth across the house.
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Is PARperfect only for high-tech greenhouses?
Not at all. The principle works anywhere screens can move in coordination — from advanced glasshouses to modern plastic structures. The key is control precision, not the building material.
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Does PARperfect require new screens?
It depends on your setup. The system works best with a high-diffusion screen paired with a shading screen of known light transmission. Svensson can assess your current screens and recommend adjustments rather than full replacements.
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How is PARperfect fine-tuned for each crop?
Each crop has its own ideal light curve. Svensson consultants help define the target PAR range and adjust the control strategy to match plant needs, growth stage, and location.
