Tecnical questions

The determining factor for which product model is best for your operation is dependent upon your goals and environment. There are numerous variables that will determine which product is best for your growing environment. We have compiled a high-level summary below to help you decide.


Indoor? LX-GLM and LX-GLS are ideal for indoor environments. If you have a vertical rack system, grow tent or aisles throughout your room, we recommend one LX-GLM for veg and LX-GLM for bloom for every 4’x4’ of canopy. If you have a wide-open room (i.e. sea of green) we recommend LX-GLM and LX-GL. Light levels vary for LX-GL depending on mounting height and spacing. Please contact us for a free lighting design consultation to determine the appropriate number and placement.


Greenhouse? LX-GL was incepted from the ground up for a greenhouse environment. The exact number of fixtures and model is dependent on your geographic location, crop type and growth goals. Please contact us for a free lighting design consultation.

Our UVSpec PhysioSpec spectrum provides a peak wavelength of 400nm and is designed to provide beneficial photomorphogenic responses by creating a mild stress response in plants. As an example, research shows UV light can increase THC content in cannabis plants when applied during the last one to two weeks of growth.


When applied incorrectly, research shows UV stress causes photoinhibition of chloroplasts, resulting in lower biomass production, photobleaching and death of leaves.

UV Spec is available in our GLM systems.

In a typical greenhouse environment, certain parts of the electromagnetic radiation emitted by the sun encourage plant characteristics that are undesirable, such as plant stretch induced by 730nm far red radiation. We counter these effects with an increase in 400-450nm composition in LX-GML Greenhouse.

All Luxint systems are passively cooled using natural convection without the need for a fan. We do not believe in installing cooling fans inside LED fixtures. On average, LEDs should yield approximately 50,000 hours of useful life. However, no fan is going to last this long in wet/damp/harsh/dirty environments typical in horticulture environments. If the fan fails after 10,000 hours, the LEDs would fail shortly after. In addition, fans require energy to operate, and fans don’t grow plants. We prefer every joule of energy go toward photon emission. Hence, we do not believe this is an acceptable engineering design for LED fixtures.

Yes, all lighting systems produce heat, but our systems dissipate the heat differently than other LED systems, fluorescent or HID (i.e. metal halide) lighting systems. Fluorescent and HID lighting systems largely rely on radiative heat transfer from the front side of the fixture. This is why you can feel the heat if you place your hand in front of these lighting systems. This is compounded by the aluminum reflectors that are commonly used in these systems, and this can have a substantial impact on the temperature at canopy level. Fluence systems rely on conduction and convection as the main heat transfer methods. This is why the heat sink on back of our fixtures will feel warm/hot. Since convection is carrying the heat away from the fixture from the top of the fixture, your canopy temperature will be minimally impacted compared to using a fluorescent and/or HID lighting system.

This depends on the air temperature and air velocity around the fixture. If you have air flowing around the lights, they will barely feel warm. However, if the air surrounding the fixture is hot or there is very little air movement, the fixture will feel very hot. This is normal because the fixture housing draws heat away from the LEDs by design. However, these are high-power lighting systems, so we do not recommend touching them.

μmol/J stands for micromole per Joule. It is a measurement to determine how efficient a light is at converting electrons into photons. Luxint lighting systems are some of the most efficient on Earth. They are also some of the most powerful. It’s the balance between the two that we strive for real-world application. More on this later.

A light’s color rendering index (CRI) is a quantitative measure of the ability of a light source to reveal the colors of various objects faithfully in comparison with an ideal light source (i.e. the sun). This value is not important to how a plant responds or photosynthesizes. Where CRI is important is how well you can tell the true color of something, for example a leaf that might be chlorotic (lacking green). When you have an ideal CRI it is easier to detect color variations that might be indicating poor plant health.

LX-GLM has a CRI of 85. For comparison, HPS has a CRI of 25.

Plants are photoautotrophs – using a narrow band of light between 400nm -700nm as a source of energy to make food molecules from carbon dioxide and water.

This process is photosynthesis (the most important chemical process on Earth). The only type of light which enables photosynthesis is defined as Photosynthetically Active Radiation (PAR): the narrow band of light between 400nm – 700nm.

Light outside of this range is not photosynthetically active and will not generate greater biomass for those seeking improved yield.

An electronic light source converts electrons into photons. Lights for human vision measure output with lumens (measured in lux or footcandles). Lights for photobiological reactions measure output with photosynthetic photon flux (PPF). PPF tells us how much PAR a light source emits.

Where PPF measures total PAR output of a lighting system, PPFD measures how much of that light is delivered to a canopy.

Before light can be effective in a photochemical reaction (whether photosynthetic or photomorphogenic), it must first be absorbed.

Photosynthetic Photon Flux Density (PPFD) is the measurement of PAR delivered to a specific area. It is expressed as micromole-per-meter squared-per second (μmol/m2/s).

This is the only measurement that informs us of the amount of light being delivered to a crop which enables photosynthesis.

Luxint LX-GLM and LX-GL systems are designed specifically for PPFD, not PPF.

Other questions

Yes. Barring an embargo, we sell and offer shipping to almost every country.


Please contact us at sale@luxint-led.com for a quote and order fulfillment.

For quick processing, tell us what product you would like to purchase and include your mailing address.

Since all lighting systems depreciate with use (including the sun), we do not accept returns or exchanges on any lighting products. We do offer a warranty on our products for three years.

Luxint does not currently offer internal financing options, however, we welcome the opportunity to work directly with your financial provider.

Current lead time projections are below. These estimates are based on non-commercial volume orders. Please contact us for lead time on orders greater than 60 units.

LX-GLM: 7 to 10 Business Days from payment approval

LX-GLS: 7 to 10 Business Days from payment approval

LX-GL: 7 to 10 Business Days from payment approval

Yes, we are also doing white labeling in most of all the products. As per the customer’s need and suggestions we provide custom design, productions, branding of their company on packaging box or products. Custom packaging design and innovations are welcomed. Many of our clients are printing their logo on the products.
Our payment term are L/C, D/A, T/T Transfer, West Union, you could choose the way most convenient. For samples you can pay by paypal or payoneer. The surcharge will be required to pay extra.