What is DIALux?

Well-designed lighting system provides just the right amount of light for its intended application: less lumens yield poor performance, but more lumens represent wasted energy. Like in any building system design, the optimal capacity can only be specified with an adequate calculation procedure. Lighting designers use the photometric data of proposed fixtures as a starting point. For the calculation procedure they consider the project’s location, indoor or outdoor, as well as environmental conditions like temperature and dirt.

So what’s DIALux is?

It’s a design tool that lighting engineers use to calculate and visualize the lighting requirements for specific applications. It determines which type of lights are needed, the number of fixtures and wattage for each, and how far apart they should be placed. It also provides a visualization of the lighting coverage, so you can see exactly what you’re getting.

The purpose of lighting calculation is to reach a suitable illuminance level for the intended application. The concept of illuminance describes lighting delivered per unit of area, and it is typically measured in foot-candles (lumens per square foot) or lux (lumens per square meter). Dialux makes lighting design easier and efficient.

Every series light of OKT lighting including led linear lightings, led troffers, T grid led lighting, LED Flat panel light,  led downlights has precise IES file, support Dialux simulation in various applications. OKT lighting is aiming to provide customers best data support in every project!

What is DALI Dimming

When more than one fixture needs dimming, we can use DALI dimming instead of 1-10V dimming. DALI dimming is a typical digital control mode.

DALI (Digital Addressable Lighting Interface) is an internationally-recognized lighting control communication protocol with a communication speed of 1200 BPS ± 10%. Mainly used for dimming control of multiple fluorescent lights and LED lighting. DALI can form a network with a maximum of 64 short addresses and 16 group addresses. A host can control one or more  computers and communicate in half-duplex mode.

Each of the four letters DALI has meaning:Digital, Addressable,Lighting ,Interface .DALI can dimmer each fixture with DALI driver. Different lighting units on DALI bus can be flexibly grouped to achieve different scene control and management. Compared to other dimming methods, the advantages of DALI dimming are:

• Digital dimming, dimming accurate, stable and smooth;
• Dali can communicate with each other in both directions, and can feedback the lamp to the system;
• Dali control is more flexible;
• Dali has strong anti-jamming ability.

High Quality Dimmable LED Ceiling Panel Light

Panel light is a kind of modern and decorative lighting, widely used in office spaces, major retail stores, education, government, and residential facilities. LED panel light has main advantages of low-carbon energy, adapting to global energy conservation, low-carbon lifestyle trends. The life span for LED panel light is 50000 hours, equivalent to 50 times of traditional incandescent lamps,it is economy really substantial luminaries for use, becomes the preferred green fixtures of decoration and lighting.

What Advantages of OKT LED Panel Light?
OKT Lighting focus on high quality and high-end led flat panel light. our products using SMD 2835 LED is more bright and longer lifespan. High luminous efficiency and save more than 90% energy than incandescent lamp.No UV, IR or mercury is with environment friendly benefit.Ultra-thin design, simple and fashionable appearance.
This ceiling installation panel light are UL, CUL , DLC listed, which is capable of retrofit application to existing fluorescent fixtures or new architectural recessed, it's available in 1x4ft, 2x2ft, and 2x4ft,with input wattages 40w and 50w. Dimming type is 0-10V dimming, efficacy has 100lm/w.

Aluminum alloy frame and PMMA plate,aluminum alloy frame is strong and not easily deformed. T-grid hock for recessed installation. Recessed inverted T-Bar ceilings, grid mount. Only 5 steps for installation within 10 minutes,economic and convenient.

About Installation and Warranty
OKT Lighting has been working with led commercial lighting for 10 years, Our products cover led downlight, emergency led driver, surface mount led light, led pendant light, T-grid linear light, our professional R&D team will continue to provide after-sales support service, 5 years limited warranty helps reduce operating cost of maintenance.

Besides，You don't have to worry about your electrician not professional enough to install our products, specific installation instruction and videos will be provided for your reference.

What’s the difference between IC rated downlight and non-IC downlight

Whether you’re remodeling your current home or building a new one, your recessed lights generate heat, and that heat needs to go somewhere. If you don’t want to set your ceiling on fire, it’s important to know when you can use non-IC rated downlights and when you need IC rated fixtures. So what is the difference?

Non-IC rated fixtures require at least 3 inches of space between the metal of the can and the ceiling insulation. Non-IC rated downlights are often used in remodels and ceilings without insulation, such as unfinished attics, unless you’re feeling ambitious and want to rip out your ceiling. These units have a single can design that requires an air pocket to dissipate heat. They are less expensive than IC rated fixtures and can be used with higher Watt bulbs.

If you want to install non-IC rated fixtures in an insulated ceiling, you can use an airtight cover to keep the insulation from touching the can. This allows you to insulate around the cover to help prevent condensation build-up, mold growth, and minimize drafts. You can find these covers premade or make your own using rigid foam insulation and sealing it using insulation foam. Just remember to keep at least 3 inches of space between the metal housing and any other materials.

IC rated fixtures can be used in either insulated or uninsulated ceilings, but are almost always used in new construction rather than remodels. Thanks to a double can or “can within a can” design, only the outer can comes in contact with the insulation and remains cool enough to prevent combustion. This way the insulation in the ceiling can rest directly against the metal without becoming a fire hazard.

Surface Mount Led Panel Light for Drywall or Grid Ceiling

OKT Lighting designed FS series surface mount LED Light Panel, can be installed in drywall and suspended grid ceilings, it have a wide variety of size options, Stardant size like 2’x2′ (27W 40W), 2’x4′(40W 50W) and 1’x 4′ (40W),and 1’x2′ 25W, 1’x1′ 18W, and small size 4 inch 10W, 6 inch 12W, 8 inch 16W.

The surface mount led panel light is integrated with internal driver, There are two install accessories for selection. Our sales representative will confirm the installation method you want before you send the purchase order. If you want install the led panel light in the suspended grid ceilings, the goods will be shipped with a junction box.

If your want the panel light be flush mounted in drywall, we design a surface mount kit, which can be installed in any hard surface, the surface mount kit have a durable, extruded aluminum frame, with slotted design can be compatible with multiple size of junction box. They have a durable powder coat finish and a decorative, elegant look.

OKT Lighting is striving to create more and more lighting solutions to fit different applications with varied optics, like led linear pendant, led troffer, linear pendant lighting.

LED Troffer Ceiling Fixture 2×2 2×4

OKT Lighting designed 2x2ft and 2x4ft 1x4ft LED Troffer to replace traditional grille ceiling fixture.

Grille Ceiling Fixture Compare With LED Troffer:

OKT Led Troffer light, the economic version of panel which change the traditional grille ceiling appearance, increase the visual aesthetic feeling, meanwhile, provide more options for customers.

Features

1. OKT 2x2ft，2x4ft and 1x4ft LED Troffer are listed by cULus and DLC.

2. 0-10V dimmable.

3. Widely applicable to various fields, like Hotel, residential light, office lighting etc.

4. 5 years warranty for all troffers, high brightness and easy installation.

OKT is an experienced, dynamic, energetic and proactive enterprise. From the four corners of our plant, our team members hold the same core and beliefs. And OKT will continue effort to develop new products, T-grid led lighting，led downlight ，linear light fixture，led flat panel light，etc.

Understanding Power Factor and why it’s important to led lighting?

Power factor is the relationship (phase) of current and voltage in AC electrical distribution systems. Under ideal conditions current and voltage are “in phase” and the power factor is “100%.” If inductive loads (motors) are present, power factor less than 100% (typically 80 to 90%) can occur.

In AC circuits, the power factor is the ratio of the real power that is used to do work and the apparent power that is supplied to the circuit.
The power factor can get values in the range from 0 to 1.
When all the power is reactive power with no real power (usually inductive load) - the power factor is 0.
When all the power is real power with no reactive power (resistive load) - the power factor is 1.
Low power factor, electrically speaking, cause’s heavier current to flow in power distribution lines in order to deliver a given number of kilowatts to an electrical load.


The effects?
The power distribution system in the building, or between buildings, can be overloaded by excess (useless) current.
Generating and power distribution systems owned by Edisto Electric have their capacity measured in KVA (kilo amps).

With unity power factor (100%), it would take 2,000 KVA of generating and distribution network capacity to deliver 2,000 KW. If the power factor dropped to 85%, however, 2,353 KVA of capacity would be needed. Thus, we see that lower power factor has an adverse effect on generating and distribution capacity.

Low power factor overloads generating, distribution, and networks with excess KVA.
If you own a large building, you should consider correcting poor power factor for either or both of these reasons:
• To reduce the possibility of additional power factor charges in the event that Edisto Electric starts billing for PF corrections and
• To restore the (KVA) capacity of overloaded feeders within the building or building complex.

The power factor of All products manufactured by OKT Lighting are more than 0.9, such as led linear pendant, surface mount led light, recessed led light, led pendant light fixtures, ect. Welcome enquiry

What is Beam Angle

Beam Angle — This is the angle at which light is distributed from the bulb. LEDs come in a wide variety of beam angles. The exact measurements for vary slightly from one manufacturer to the next, but in general these are the degrees for each type of flood:

1. Omni-directional: These bulbs have at least a 300 degree beam angle.

2. Wide flood: A beam angle between 90 degrees and omni-directional will give a wide flood.

3. Medium flood: A 45-90 degree beam angle will give a medium flood.

4. Narrow flood: 25-45 degrees is a medium-narrow flood, and 25 degrees or less is a narrower flood, good for a spot light.

Small Flush Mount LED Panel Lights in 1x1ft and 1x2ft

Feature:

1. Only 0.12″ gap between the led panel light and dry ceiling.

2. Each panel light comes with a surface-mount plate and can be easily mounted to ceiling junction boxes

3. UL Listed dimmable constant-current built-in drivers. Brightness can be controlled with a 0-10-volt dimmer within a 100-277 VAC range.

4. This panel are designed for home, office, basement, kitchen, bathroom, office, and more.

5. Our surface mount led light have UL certification, also we guarantee 5 years warranty.

OKT Lighting has been specializing in LED Lighting industry since 2008. We keeps on innovating and has a wide product range ,including led panel lights, led troffer, led downlights, led linear light and battery backup ballast. All of our products have achieved certifications, such as UL, ETL, Energy Star, DLC, TITLE 24, CE, SASO and FCC. And five-year warranty are certificated by international authoritative organizations.

Contact: sales@okt-led.com

What Kind of Classroom Lighting Is Healthier

In recent years, the rate of myopia among Chinese teenagers has been rising, and the high-definition and college students' myopia rates have exceeded 70%, and there is a trend of younger age. Studies have shown that the impact of classroom lighting on vision is critical.

According to the survey, about 60-80% of the learning time of primary and middle school students is in the classroom. In the National Natural Science Foundation project "Biology Health-based classroom health lighting research" experiment shows that school classroom lighting directly affects students' learning efficiency and vision health. The current common problems in classroom lighting are summarized as follows: illumination, glare, sign, color temperature, strobe, no blackboard light.

It can be seen that whether classroom lighting meets health standards is one of the ways to effectively prevent students from producing sub-health problems. Classroom lighting should not only conform to national standards, but also should achieve the goal of caring for the healthy growth of students in all index factors.

LED lighting is currently recognized as the preferred classroom lighting fixture. Its advantages of energy saving, high efficiency and high luminous efficiency are obvious. In addition, LED lighting fixtures operate with almost no IR (infrared) and UV (ultraviolet) radiation. The LED light source does not have any filling gas, and there is no adverse effect on the environment after comminuted damage.

However, there are also variations in the quality of LED lighting fixtures on the market. If the selection is not correct, there are still hidden lighting safety hazards that affect the visual health of adolescents.
So what kind of classroom lighting is healthier, more environmentally friendly?
There are mainly 5 items that need to be focused on: anti-glare, no stroboscopic light, the illumination uniformity, comfort and energy saving effect.
OKT has been dedicated to the lighting industry for over 10 years, and we have gone through a lot of changes in the industry since we entered in 2008. What we always pursuit is to deliver our high-quality products with detail attention, low glare led linear pendant  UGR<5 ,T-Grid led linear light , up down led pendant light fixtures and led panel light ect.

Analysis of China’s lighting industry’s export situation in the first half of 2019

In the first half of 2019, China’s lighting industry exports totaled approximately US$21.86 billion, a slight increase of 4.08%.

In the first half of 2019, China exported a total of 4.58 billion light source products, a decrease of 6.90% year-on-year; among them, 922 million incandescent lamps and 210 million tungsten halogen lamps; 458 million compact fluorescent lamps and 149 million straight fluorescent fluorescent lamps; HID lamps totaled 28 million; LED light sources reached 2.820 billion, accounting for 61.5%, and the proportion increased year-on-year (58% in the same period of last year); while traditional light sources still accounted for 38.5%, the replacement market still has certain potential.

(1) Traditional light source: the falling of the tungsten halogen product

With the replacement of related LED lighting products and the elimination of high-energy-consuming products around the world, traditional lighting products include incandescent lamps and tungsten halogen lamps for thermal radiation sources, and compact fluorescent lamps for fluorescent lamps.
Straight tube/ring fluorescent lamps, as well as high-pressure mercury lamps, high-pressure sodium lamps and metal halide lamps for high-intensity gas discharge lamps, are almost double-digit declines, especially in tungsten halogen lamps with relatively stable trends.

Previously, tungsten halogen lamps were favored by the European and American markets for their excellent light color quality and high efficiency relative to incandescent lamps. However, due to their export markets, Europe, the United States and Australia have successively introduced halogen lamps for general lighting. The ban makes it really step into the accelerated down range. As can be seen from the above figure, September 1st, 2018 is the node for the elimination of some non-directional tungsten halogen lamps for general lighting in the European Union. Since August 2018, the export quantity and amount of tungsten halogen lamps have fallen off the cliff, in the first half of 2019. The export volume was 210 million, down 58.01% year-on-year; the export value was US$71 million, down 53.04% year-on-year. The unit price increased, because the tungsten halogen lamp products that are not in the forbidden sale are mainly reflective units with higher unit price. And special lighting applications. Under this circumstance, related LED replacement products such as LED filament lamps or SMD multi-faceted luminescent bulbs and other similar products should usher in a round of alternative opportunities.

(2) All kinds of lamps: there is a slight fluctuation in the trend.

The main lighting products, including the HS code of 94051000 “chandeliers and ceiling or wall electrical lighting devices”, that is, fixed lighting; HS code is 94052000 “electrical table lamp, bedside lamp or floor lamp”, you can The movable luminaire; and the “unlisted electric lights and lighting devices” with the HS code of 94405090, namely outdoor lighting and some LED lighting

The export of these types of lighting products mainly reflects the fundamental situation of the national economic needs of various countries, and is also the main force driving the development of the export of the entire lighting products. The development curve also reflects that the global economy is still at a low point and is in a difficult recovery period. LED lamps are also increasing in proportion, such as indoor downlight/spotlights, panel lights, high bay lights, linear lights, outdoor cast/flood lights, lawn lights/garden lights, street lights/tunnel lights, etc. Products have gradually become the main force.