How GROWLIGHTENGINE® makes use of Technology

Traditionally, LED grow lights can be separated into two groups:

· The ones that try to be practical and not make use of technology.

· The ones that try to make use of technology but end up being too complicated.

They both have their problems. The first mentioned does not offer a sufficient advantage compared to the traditional luminaires. The second one requires one to spend a significant amount of time learning how to properly operate the luminaire.

Our approach to technology is different. We believe that the latest technology should be used, and it should be simple enough to use. It is not beneficial to use a technology that requires a lot of effort and time. You should be allowed to use your skills to grow plants, not adjusting lights.

In this blog post, I will go through the technology used by GROWLIGHTENGINE®. I will tell you how to best make use of it and the choices we have made concerning technology.

Powerful LED that is optimised for plants

Let us start from the most critical part of LED grow light, the LED.

GROWLIGHTENGINE® uses Japanese COB-LED. The LED manufacturer was the first to release a commercial COB LED. They have a long experience in manufacturing long-lasting and high-quality COB-LEDs.

What is COB, and why we chose it?

COB comes from the word “Chip-On-Board”. In short, COB-LED has got several LEDs packed together in one package.

Advantages of COB LED compared to LED modules made of SMD modules:

· The light comes from a smaller area, so it is easy to control with optics.

· The smaller size makes it possible to manufacture smaller lights.

· Withstand heat better, and cools from a larger area.

· Better efficiency

· It generally has a better lifespan than SMD-LED.

Due to the high-quality COB-Led, we can guarantee GROWLIGHTENGINE® greenhouse lighting with a five-year warranty and up to 10 years maintenance-free as its high quality ensure no issue will arise in the product during this period.

Even light with a wide-beam lens

The high-powered LED used by GROWLIGHTENGINE® produces a lot of light. By using a 120° wide-beam lens, an area 10 times bigger can be illuminated than with a traditional narrow lens. A traditional, low-power LED usually uses a 60° narrow beam lens.

Other features of the LED

The LED spectrum is designed to work throughout the lifespan of the plant. You don’t have to use a switch control or other gadgets to optimise the spectrum. You just keep the light on and GROWLIGHTENGINE® takes care of everything.

The LED is powered by 2700mA and has a power of about 300W. Due to this, it needs efficient cooling. This brings us to the next topic.

Efficient cooling system

GROWLIGHTENGINE® uses passive heat pipe technology for cooling. This same technology is used in laptops, cell phones, electric cars and satellites. Therefore, loud fans are no longer needed for cooling.

We use a thermally conductive paste between the LED and the heat sink. This effectively transfers heat away from the LED and the heat sink takes care of the rest.

How does the heat sink heat pipe technology work?

There is water inside the heat pipe, which the LED heats and turns into steams. The aluminium around the tube cools the steam, which condenses back into the water, after which the cycle begins again.

Because of the high-quality cooling element, we can use much more power in the LED without the risk of the LED overheating. The surface temperature of the heat sink is only 70-80 degrees.

The heat sink is also of Japanese origin and uses oxygen-free copper. In this, the thermal conductivity of the cooling element remains better for a long period.

Powerful power supply

GROWLIGHTENGINE® uses a high-quality power supply.


The power supply for the GROWLIGHTENGINE® greenhouse light is flicker-free, meaning that you can work under the light without getting a headache and other symptoms that flickering can cause. In addition, plants and animals react more sensitively to light flicker than humans, which can cause stress to the plant.

All issues caused by a flicker are not yet known, but there is no need to worry as GROWLIGHTENGINE® is virtually flicker-free.


GROWLIGHTENGINE® can also be dimmed. If you want to dim it, it is also possible. The power supply has a 1-10V dimming function. You can order a dimming cable from us separately, which by attaching, you get a dimmable luminaire

Hi-tech horticultural LED.

With GROWLIGHTENGINE®, you'll create a uniform lighting setup for your crops. All technical aspects are carefully thought, on these compact but efficient luminaires designed with nearly 40 years of experience in the lighting industry.

Go to Store


Replace easily your old HPS luminaires. GROWLIGHTENGINE® LEDs consume less and give more light.


Boost your productivity up to 30%

Experience has shown that when changing from HPS luminaires to GROWLIGHTENGINE® you can boost your productivity with 30%. When replacing your traditional HPS luminaires with the same amount of power of GROWLIGHTENGINE®, you can achieve up to 30% more yield.

Productivity after adding LED lighting

We believe that GROWLIGHTENGINE® is the best horticultural LED light on the market. When adding GROWLIGHTENGINE® luminaires to a crop with no additional lighting, you can achieve 10 times more yield.

The most economical and ecological option during its lifespan

GROWLIGHTENGINE® is maintenance free for 10 years of constant use. Light decreases only 20% in 40 000 hours. The most important feature being is that during this time the spectrum doesn’t change.


GROWLIGHTENGINE® features a refined full-power spectrum suitable for growing all kinds of plants. With this spectrum you’ll grow healthy, well- formed plants from seed to flowering and fruiting.

What is a spectrum?

High-quality lens

Create a uniform lighting setup for your crops. While most grow lights use a narrower lens or no lens at all, the GROWLIGHTENGINE® lens is made from high-quality borosilicate glass, which transmits 97% of the light and the spectrum evenly.

The lens with a beam angle of 120° covers a wide round area. Properly installed, it creates an intense uniformity of light. If the luminaire is hanged at 1,2m of height, it will cover a 14 m2 area.

PPFD cone

As you can see, GROWLIGHTENGINE® 2.0 light is powerful. The minimum distance from the plant is 30cm.

Less shade

GROWLIGHTENGINE® luminaires are designed to minimize the shade on your greenhouse. Don't loose any more sunlight.

Most popular searches

Your shopping cart is empty

Suodata tuotteita

Terms and conditions

These delivery terms are valid from 20.4.2020 .

GROWLIGHTENGINE® – e-commerce store delivery terms

GROWLIGHTENGINE® e-commerce store is maintained by Arrant-Light Oy.


VAT: FI05805430

Address: Rajakivenkatu 8, FI-20740 Turku

Customer service number: +35822462300

Customer service email:

The following terms and conditions will be applied to the relationship between GROWLIGHTENGINE® and its e-commerce customers. GROWLIGHTENGINE® reserves the right to change and update the terms and conditions unilaterally without notice.

GROWLIGHTENGINE® is not liable for damages or delays caused by force majeure. Force majeure covers all unforeseen and overwhelming obstacles and conditions that GROWLIGHTENGINE® couldn’t have forecasted or have an impact on (and cannot solve reasonably) GROWLIGHTENGINE® is liable to inform the e-commerce customers about this type of delays immediately.

Customer information

Applicable Finnish and EU legislation concerning consumer trade, marketing and advertisement will comply between GROWLIGHTENGINE® e-commerce and its clients.

When ordering, the e-commerce customer must provide complete contact information, including at least the name, address, telephone number, and e-mail address. An e-commerce customer may choose to register to create a customer-specific account, but this is not a prerequisite for ordering.

The information of e-commerce customers is used to maintain the customer relationship and the information is stored at GROWLIGHTENGINE®'s customer register. GROWLIGHTENGINE® has prepared a data protection statement in accordance with the Data Protection Regulation, which is available at The e-commerce customer has the right to prohibit the use (and processing) of their data for marketing purposes and to see their own data. In these situations, you should contact GROWLIGHTENGINE® e-commerce customer service support (

Placing an order

The payment service provider is Paytrail. Paytrail is Finnish online payment provider. The payment options are invoice, installment payment, card payment, and online banking payments. Available options for you depends on your country.

By providing information at the checkout, you accept the terms and conditions of Paytrail (Paytrail Oyj, Innova 2, Lutakonaukio 7,40100 Jyväskylä, By clicking on the “Buy” button you agree to our general terms and conditions.

Payment and payment methods

Once we receive your order, we will immediately email you an order confirmation showing your order details. Always check the contents of the order confirmation. If you have any questions, please contact our customer service immediately ( Save your order confirmation if you need to contact customer service. When dealing with customer service, always keep your possible customer number and order number available. Always check that the contents of the package match the products on the order confirmation.

Prices are in euros (€) and include VAT (24%). GROWLIGHTENGINE® reserves the right to review and correct both product and freight prices. The delivery price depends on the chosen mode of delivery.

Order- and Payment confirmation

Once we receive your order, we will immediately email you an order confirmation showing your order details. Always check the contents of the order confirmation. If you have any questions, please contact our customer service immediately. Save your order confirmation if you need to contact customer service. When dealing with customer service, always keep your possible customer number and order number available. Always check that the contents of the package match the products on the order confirmation.

Prices are in euros (€) and include VAT (24%). GROWLIGHTENGINE® reserves the right to review and correct both product and freight prices. The delivery price depends on the chosen mode of delivery.


Our products are shipped from Finland.

At the moment we ship to the following countries:
Andorra, Austria, Belgium, Bulgaria, Croatia, Denmark, England, Estonia, France, 
Germany, Greece, Hungary, Ireland, Italy, Latvia, Liechtenstein, Lithuania, 
Luxembourg, Monaco, Netherlands, Northern Ireland, Norway, Poland, 
Portugal, Romania, San Marino, Scotland, Slovakia, Slovenia, Spain, 
Sweden, Switzerland, Czech Republic

If your country is not listed above, please contact us.

Standard delivery cost is 28€ (*).

*By creating an account on our website you will get free shipping.

Common delivery times vary depending on the size of the order. Normally orders will be sent within a week unless otherwise stated.

The delivery times vary depending on the country. In Finland, delivery times are 3-5 days. In Europe 1-2 weeks.

We are not responsible for delays or possible inconveniences caused by force majeure. The online store informs about abnormal delivery times on its website.


If you want to return your GROWLIGHTENGINE® please contact us at for further instructions.

Right of withdrawal

You have the right to cancel this agreement within 14 days without giving any reason. The withdrawal period ends within 14 days starting from the day you received the last shipment, or in the case of downloadable products, from the moment you received the order.

In order to exercise the right of withdrawal, you must notify us of your decision to cancel the agreement in an unambiguous way (for example, by mail or by email). You can also use our printable return form, but its use is not mandatory.

To comply with the deadline for withdrawal, it is sufficient that you submit your notice of cancellation before the end of the withdrawal period.

Effects of withdrawal

If you withdraw from this contract, we shall reimburse to you all payments received from you, including the costs of delivery (with the exception of the supplementary costs resulting from your choice of a type of delivery other than the least expensive type of standard delivery offered by us), without undue delay and in any event not later than 14 days from the day on which we are informed about your decision to withdraw from this contract. We will carry out such reimbursement using the same means of payment as you used for the initial transaction, unless you have expressly agreed otherwise; in any event, you will not incur any fees as a result of such reimbursement.

You must return the goods without delay and no later than 14 days after informing us about your decision to withdraw from the contract. The deadline is met if you send back the goods before the period of 14 days has expired.

You are only responsible for the kind of value decrease of the goods that did not result from treatment that is required for determining the nature, properties and functionality of the goods.

Unclaimed deliveries

Unclaimed delivery is not comparable to customer return or cancellation. We will charge the relevant delivery costs for all unclaimed orders if the customer hasn’t placed a cancellation.


If the order is lost or damaged during the transport or does not otherwise correspond to your order, you must report the error within 14 days in writing to the address mentioned in the Right of Cancellation and Return Policy or by calling the telephone number mentioned in the contact information. If the package is clearly damaged in transit, you must immediately make a complaint to the shipping company of your choice.

Warranty Terms

GROWLIGHTENGINE® products are manufactured with great care and are subject to strict quality control before leaving to the customer. If nevertheless, defects in material, installation or manufacturing are found in the device supplied to you, they will be repaired at our discretion, either free of charge or by replacing the defective device with a new one, at our discretion. Normal wear and tear due to use is not covered by the warranty.

In the event of a warranty claim, contact your GROWLIGHTENGINE® dealer or if bought from GROWLIGHTENGINE® official web store contact us at The warranty is only valid upon presentation of a purchase receipt showing the seller's name and address, equipment type and date of purchase.

The GROWLIGHTENGINE® warranty is valid for new equipment sold in the European Union and is subject to Finnish law. The guarantor is GROWLIGHTENGINE®, Rajakivenkatu 8, 20740 Turku, Finland.

For consumers, the warranty expires after three years (*) from the date of delivery of the device.
(*) By registering, the warranty is five years from the date of delivery of the device. 

If the device is used for professional or similar purposes or purchased in the name of a company, the warranty is valid for three years from the date of delivery of the device. 

If the device you have purchased is defective, you have all the statutory rights to make claims against the seller under the sales contract. These rights are not limited by the warranty provided by GROWLIGHTENGINE®.

Finnish law applies to all disputes between the customer and GROWLIGHTENGINE®.

Gift cards used in the shopping cart