LED Track Light

Track lights are generally used in commercial places such as clothing stores, retail stores, supermarkets, etc. 

supermarkets and other places.Compared to recessed lights,track lights can be installed on the corresponding track rail, so they can be flexible.

The power of our DGT track lights can be 10W to 45W. The beam angle options are narrow/medium/wide. Track adapters can be selected according to the market and requirements of single phase/2 phase /3 phase . More, Triac, 0-10V DALI dimming functions or remote control for track lights are available.

LED Downlight

LED downlights are widely applied in hotels, shopping malls, homes, etc. 

The installation method of LED downlight is embedded. The power of our DGT downlight products ranges from 5W to 50W, which can meet most indoor requirements.

Meanwhile, we provide COB downlights and SMD downlights with different powers and sizes, which can be adapted to the different requirements from customers.

LED Spotlight

LED spotlights are widely used in hotels, shopping malls, etc. 

The installation method of LED spotlight is recessed. There are many types of DGT spotlights, with power ranging from 5W to 50W. The beam angle options are narrow/medium/wide.

In order to improve the comfort of the light,many of the DGT spotlights use anti-glare and black light technology to reduce glare and protect eyes.

LED Ceiling Light

LED ceiling lights can be used in shopping malls, offices and clothing stores, etc.  

Ceiling lights can be installed on the surface of ceilings, which making the installation methods more flexible. The power of our LED ceiling spotlights ranges from 5W to 50W. The beam angle can be selected from narrow/medium/wide.

LED MR16 Lamp

LED MR16 light sources are most widely used LED lighting products worldwide which can be used in any general indoor place. 

They are mainly used to replace other MR16 light sources, such as MR16 metal halide lamps. The LED MR16 light lamp has a longer life than the traditional MR16 light source and is more environmentally friendly and energy-saving.

These LED MR16 light sources can match with the MR16 fittings,so it is easy to keep current MR16 trim and to use LED MR16 lamps.

MR16 Fixture

MR16 fitting can match MR16 light source. DGT has variety of lighting fitxure of MR16, such as   fixed/adjustable/deep hole anti-glare ones.

Also, they can be made in different styles and patterns. Our MR16 outer ring roughly has openings φ65mm/φ75mm/φ90mm. More, there are also 1 head/2 heads/3 heads/4 heads MR16 trim.

Things you need to know about beam angles

Lighting angles are something we use to measure how our light products distribute their lights, and to what extent a room. We find such things in various candles, light bulbs, and other lighting resources.

In general, a LED beam angle can either be narrow or wide. A narrow LED beam angle means the light beam angle is focused on a certain space of the room. Conversely, their wider counterparts have more biased spectrums. Yet, the light’s intensity is lesser than a lamp product with narrower angles.

We measure the angles of the lamp’s beams from the parts we mount the products. For instance, we measure a downlight beam angle from the top-ceiling parts if we mount the downlight lamps there.

The downlight (or the recessed light) products are also among our best-selling products in DGT Lighting. In addition, our teams can also provide you with advice on how to install the recessed lights accordingly, so the recessed lighting beam angles will be compatible with the store’s settings and also with other products, tools, and equipment around the area.

How do we further define and type LED lighting products’ beams’ angles?

Some of the lighting suppliers, manufacturers, distributors, and wholesalers, tend to define their products’ angle settings as either narrow, wide, spot, wider-angled, narrower-angled and more.

To put it more specifically, there is the universal terminology and standard in further defining the angles that we refer to as the NEMA (National Electrical Manufacturers Association) classification.

NEMA itself is the world’s largest association of manufacturers who work in electronic equipment, including the 20W spot beam angle lights supplier in China or other parts of the world.

NEMA categorizes lighting products’ biases using a 1-7 scale. The closer the scale number to 1, the narrower the descriptions are. The verbal descriptions themselves range from Very Narrow (1) to Very Wide (7). Somewhere between 3-4 are considered Medium Narrow (3) and Medium (4).

We also use the general narrow versus wide measurements for determining which lighting products serve what purposes. We usually divide lighting products based on ambient, accent, or task-related LED purposes.

Ambient lightings are equal to diffused or wide-angled lighting since the aims are to illuminate a certain space. We often find ambient lighting in the living rooms.

Then, there are the accent lighting types that focus on aiming at the walls. These lights’ angles tend to be narrower than the ambient lighting since they have to focus on the reflectance aspects. The narrow (around 20 degrees) downlight product is one of the best-selling supplier types of accent lighting because we won’t lose the lights in the room.

Task lighting types are yet some other angle-setting types we can find in offices and any spaces with busy workers. The downlight or spotlight products in task lighting categories also tend to have narrow degrees like in the accent lighting. However, the purpose is to highlight important work pieces like the study desks and to improve the workers’ focus.

How do we classify lighting products based on their biases in degrees?

The lighting degree itself is the way we use our light products to measure the area coverage. The more accurate the light beam angle calculator results the fewer adjustments, installments, and fixes we need for the fixtures and other relevant LED equipment.

Lighting manufacturers and wholesalers generally state the angles in degrees. 5-120 degrees are the typical benchmarks in determining that a light source emits a narrow (but focused) or a wide (but having fewer lumens) light beam angle.

Light resources with around 5-45 degrees are narrow, while the ranges between 45-120 degrees are wide. Nonetheless, some people can categorize the wide versus narrow angles using either the BR, PAR, or MR category bulbs.

The first classification, which is the BR (Bulged Reflector) bulbs, has more than 90 degrees of angles. The second one (or the PAR (Parabolic Aluminized Reflector) bulbs have around 45-90 degrees. Finally, the third one, which is the MR (Multi-Faceted Reflector), has the narrowest angles of around 15-45 degrees.

The recessed lighting beam angles also have their specifications. For instance, spotlights that emit an intense circular-shaped light will have narrow light biases (or only up to 60 degrees). On the other hand, flood lights have wider biases (or at least 90 degrees) than their spotlight counterparts.

There are also 120-degree lamps as options for people who don’t want to install too many lighting products in a room.

However, the amounts are fewer than other narrower angles, such as the 36-degree lamps for office and household purposes. These lamps also have fewer amounts than the 25-degree downlight products for kitchens, study rooms, and libraries.

How do we measure LED light angles using some formulas in mind?

The higher the LED biases in degrees, the wider the area coverages of those lighting products. The mathematical formula comes to mind when talking about accurate area coverages.

Once we apply these formulas accurately, we will get fully-illuminated areas that don’t require frequent maintenance. The accurate lighting degrees will also improve the aesthetic feeling of a room and encourage positive moods for people in the room.

Here is the formula for measuring any lighting biases, including the beam angle for recessed lights (or downlights) products:

Angle = 2 * Tan^-1 (Lighting Spread / Light Distance)

Just as with other similar formulas, the spread also has standard deviations. In this mathematical formula, we refer to those deviations as the spill lights that should be no more than 50% of the maximum outputs from both sides of the LED beam angle.

In applying such formulas, we will take a 40*40 square foot room with 35ft ceilings as an example. You would need either one 60-degree downlight at the center of the ceilings or two downlight products of the same degrees, but placed on a separate half of the total ceilings’ heights.

You can consider the building types where you wish to apply the lighting products and their biases when thinking about the ceiling’s heights.

For example, a standard building’s ceilings are around 2.4-2.7 meters. Such things are different from multi-floor commercial buildings that are more than 25 meters. The taller the ceiling heights, the more likely you have to concentrate on either having wider-angled LED products or adding the number of light bulbs.

What are the building types we should consider when choosing the angles of our LED products?

The rooms’ specifications and acknowledging that each room has different purposes are the starting points of considering the products’ angles. Understanding and applying those two crucial points will lead us to choose accurate lighting products, fixtures, reflectance, lumens, and more.

Dividing between residential and commercial uses is one of the common practices in considering the beam angle for recessed lights or other similar products, including the recessed light angle or the downlight beam angle. The most visible difference between residential and commercial buildings lies in their average ceiling heights, which determines the mathematical formula’s results as stated above.

Their settings are also different: Residential places focus on the room-by-room basis, while commercial buildings focus on efficiency in the central area.

Since residential places focus on a room-by-room basis, the recessed lighting beam angle can be narrower than the particular room in most commercial buildings, even though some real-life examples include wide and very wide beam angle examples for both residential and commercial buildings.

Since there are many commercial buildings we can find on the street, we divide the next sections into four categories: Office buildings, restaurants, retail stores, and warehouses.

Office buildings

Multiple workers are the primary characteristics of an office building and the working spaces. One mess up in the recessed light angle and other products’ angles will make the workers’ moods chaotic.

We should also pay attention to employees who regularly work with electronic devices, such as computers, televisions, radios, and others.

In such a scenario, more than 60 degrees angles are great, including for the recessed light angle, with only a few narrower-angled lighting beams around the wider-angled lights. That way, the workers can focus on what they do while not hurting their eyes when they are working.


Today, there are many restaurants (and other similar eating places) that focus on the aesthetic side. At some points, these places are only open for a few hours on certain days.

Such characteristics make them an exception to other commercial buildings’ characteristics, even though there are some multi-floor restaurants and they are not using the same room-by-room basis as residential buildings.

Hence, such unique characteristics in terms of aesthetic purposes and different operating hours make the recessed light angle of around 25 degrees common for dining tables.

Retail stores

Retail stores are all about showcases that flatter the visitors’ eyes and eventually persuade them to buy. So, the combination of the narrow downlight beam angle for focus on the product versus the wide-angle recessed light for the whole store is a crucial thing to consider.

Many retail stores are using more than three sets of recessed light products to produce the best combination of a downlight beam angle. For example, we may find jewelry stores with lots of 10-degree angle recessed light inside the display, which is different from what we find in clothing stores with the 30-degree recessed light beam angle for the mannequins.


Lastly, this commercial building’s purpose is to keep “everything”, from the unused items to the items that the companies plan to showcase over the next few periods.

Hence, it’s not unusual to see high ceilings for warehouses and the recessed light beam angle that falls somewhere around the narrow criteria. In addition, the spot or downlight suppliers, including the 20W spot beam angle lights supplier, should make sure their products have consistent lighting intensities when the lights reach the floor.

How do we determine the correct angles for the LED downlight products?

Choosing the correct beam angle for recessed lights is the starting point in determining the LED’s degrees. The downlights or the spots always consist of the bulbs and the fixtures. Starting from there, we can determine how many lights we need and compare them with other criteria, such as the heights of the buildings.

Type A bulbs are the pear-shaped bulbs that we often associate with the “light bulb” phrases. However, this bulb alone is not enough since it doesn’t direct the lighting outputs. Therefore, we put on reflectors for these type A bulbs.

Then, the bulbs’ reflectors will create angled lighting outputs in an area where we apply them. Such things make us divide them into the BR, PAR, and MR categories. Later on, we seek the matching fixtures according to these three categories.

For example, DGT Lighting sells MR fixtures. We also sell other relevant products, such as the downlight products.

When everything around the downlights is all set, we can match them with the building’s ceiling height profiles. For instance, typical home settings will require at least 40-degree LED lamps, which are different from buildings more than 25ft tall that need around 25-degree lamps. Stairways with higher ceilings also need some narrow lights to prevent accidents.

What are some of the downlight products and lighting angle-related services in DGT Lighting?

In DGT Lighting, we sell various downlight products with different bulb and fixture settings. One of the downlight categories in our company is the round recessed lights, which trims are great for giving classic contemporary touches in restaurants and other commercial buildings.

Some of our lighting products have IP certification. For example, the 10W LED SMD downlight has the IP44 certification, which means it is immune to water splashes and has protection for more than 1mm solid objects.

The recessed light fixtures, particularly the MR types, are among our best-selling products. When you try to prove these things using a light beam angle calculator, you’ll see the fixtures do not decrease the lighting’s angles as hanging pendants do.

We also become the 20W spot beam angle lights supplier and manufacturer, that you can trust, for your 20W (less or more) lighting products.

Our testing facilities and highly-experienced engineer teams are our ways of guaranteeing the after-sales services for your LED products: We will provide bulb replacements, fix the recessed lighting beam angles, set placements, or anything necessary for the rooms where you intend to place your lighting products.


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