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13 03.2019
​2018 Hong Kong International Lighting Fair (Autumn Edition) Keywords Summary 2018 Hong Kong International Lighting Fair (Autumn Edition) Keywords Summary2018.10.26-2018.10.30 With the end of October, Hong Kong International Lighting Fair also ended. Focus Lighting as an exhibitor summarized in several key words of this lighting show:High efficiency product up to 160lm/wHigh wattage up to 1440w / 1600w.Magnetic products, easy installationAC220v led strip will become more popularWe would like to explain you one by one:High efficiency product up to 160lm/wThree main of Led technical difficulties are: 1. Efficiency.  2.Heating  3.Stable of drivers. High efficiency means we continue to improve 3 of technical difficulties. The whole lamps up to 160lm/w means we have to use 210lm/w led chips, right now only Philip 5050 chips can reach that. Many manufacture marked their lamps reach to 180lm/w, We are skeptical. High wattage up to 1440w / 1600w.High master led light 1440w / 1600w mainly used for international stadium sports or seaport. As it’s limited application, it should be have a high standard of quality control. Such as Salt Mist test, wind pressure test, IP level waterproof test and basically IES test. So, few manufactures produced high master led lights. Significantly, there was something of a consensus that commercial lighting will overtake residential lighting and become 2018’s highest growth category. With 34% of respondents backing this particular development, this was more than double the 16% who expressed the same belief back in October 2017.(During the course of the four-day event, HKTDC Research interviewed 357 industry players, including 221 buyers and 136 exhibitors, in order to determine their views on the prospects of the lighting sector and the product trends they anticipated for the coming year.)  Magnetic products, easy installationMagnetic installation is a new way during these two years.The engineers not only design and research on technical parameters of the product, but also has innovative functions and close to the end user. Everyone knows that the installation of the LED is a technical job, required an professional electricians with certificate. So, the efficiency of installation is also a way to help contractors save costs. At present, we know that there are two main types of magnetic products. One is magnetic strips. Mainly for T5/T8/T12 tubes retrofit installed in troffer. The other one is magnetic track light. Mainly for shopping stores, boutiques, galleries and condos.AC220v led strip will become more popularThe led strip that everyone used is mainly DC12V/DC24V. Used to decorate the building same as the neon light. Such as the following picture. For safety reason low voltage DC12V/24V is generally used and acceptable.With the continuous advancement of LED technology, high-voltage AC110v / AC220V led strip is also a mature product, large exports to Europe and the United States. We had done a project last year used AC220V led strip, 9w 700lm, IP65, 2 years warranty, used for shopping mall outdoor decoration. Until now, it last for almost one year, effecting is good. AC220V led strip is easier installation than DC24V led strips, lower costly because it reduced the cost of drivers. But disadvantage is high voltage led strip highest watt only produce 9w, low voltage led strip can be 61.6w.The end of the HK international lighting show means the ending of 2018, but led is still moving forward. The smart lighting is coming. Are you optimistic about smart lighting? Looking forwarder to our next discussion. VIEW MORE
13 01.2019
What's corn bulbs? Brief Introduction of LED corn bulbsAs we are familiar with led bulbs, led flood light, led tube, led panels and so on. How about led corn bulbs?Today, we will introduce what is led corn bulbs, why design led corn bulbs? Corn bulbs application, advantages and some technical problems.What is led corn bulbs?LED Corn Bulb got its name because of its resemblance to an ear of corn.Corn head is the lamp holder.Corn grain is the SMD chips.Why corn bulbs to be designed?Corn bulbs designed by Mr. Yang which is an Chinese engineer in 2010. His theme is to create a new, unique bulbs under the same function to replace CFL. As we all know that in LED area. Heating and lifespan is the most predators.Heating will determined by the design of the lamp body. Led corn bulbs design maximize use of air convection to solve the problem of heating.The lifespan of the driver is determined by solutions.But what’s solution of drivers? A power solution just like a game rule that takes advantage of each component, while at the same time limiting the life of them.Some drivers will use top-level components, but it cannot show characteristics of each materials, then lifespan is limited.Some showed, but the materials cannot reach driver’s requirements. It also failed. Lifespan would be longer only combine both of them.Of course, cost is also most important for engineers when we design corn bulbs.Led corn bulbs application:At the beginning, led corn bulbs is to replace CFL, so mostly indoor use. We called them household lamps. Such as installed in Hotel, House and so on.With the widely accept of led corn bulbs, it gradually extended to the outdoor use. Mostly replace MHL/HPS, HID, HQI.  IP65.Widely used in parking lot, street, courtyard, warehouse, supermarket, lawn and square.Installed in post top, shoe box, high bay, wall pack, canopy, cobra head, bollard fixtures.LED corn bulbs advantages:Beautiful appearance, Universal mounting position/ 360degree beam angle.Unique heating design3-5 times to replace MHL/HPS, HID.  7-9 times Incandescent lamp equivalent. 2 times to replace Fluorescent.150 lpw ultra-high High efficiency Led corn bulbs technical challenge:8w-150w corn bulbs can be offered in market. But 60w is an boundary of corn bulbs. Technical for Internal drivers and heating below 60w is mature. But there are more challenges above 60w corn bulbs.Heating for Internal drivers above 60w corn bulbs.Most of factories use aluminum body for heating, but it’s heavy. Especially for high power led corn bulbs.Led corn bulbs are widely used for Urban Construction. Under the quality of them, should be choose cheaper and more reliable materials? Cost control challenge us all the time.Certificates for LED Corn bulbsNorth American: ETL  UL1993&8750.   UL1958c.   DLC 4.0,  DLC4.3  Mexico :NOMGermany:VDE   ENEC18/   ENEC25   TUV   CE ROHS   EMCOther country in Europe: CE  ROHS EMCKorea: KC Australia: SAA Are you familiar with UL standard corn bulbs?1. Normally UL certificates from factory is UL1993 & 8750 standard. But our corn lamps get UL1993 and UL1598c certificates. They are different UL No.Then what’s difference?UL1993 Standard for Self-Ballasted Lamps and Lamp Adapters.UL1598C Standard for Light-Emitting Diode (LED) Retrofit Luminaire Conversion Kits.If led corn lamp get UL1598C, that means they already get UL1993. And UL1598c lamp can remain the original fixtures UL certificates when retrofit.2.  UL1993 for 100% enclosed fixture or not?You can get this information from your lamps, UL products to be required print CAUTION PART:  Or you can get information from UL test report:“SUITABLE FOR USE IN ENCLOSED LUMINAIRES” 3. UL corn lamps have requirement for fixture dimension when installed? If UL test report showed Min.Lamp Compartment Dimensions, that means heating is limited in a space. If dimension is limited, we should think twice our corn lamps is suitable for your fixtures or not.“SUITABLE FOR USE IN ENCLOSED LUMINAIRES” and “MIN. LAMP COMPARTMENT DIMENSIONS OF of 250 x 250 mm” for models XXX”4. UL corn lamp suitable for dry or damp location?UL1993 have 3 levels. Dry, damp and wet location.Mostly IP20 corn lamps is dry location.IP64/65 corn lamps is wet location.Are you still buying DLC3.1 standard led corn bulbs?DLC(Design lights Consortium ) published V3.1 standard in 2015.11.20. Led corn bulbs with Screw base (E39) officially joined the DLC category.Most of the corn lamp manufacturers on the market get DLC3.1. But ours had approved DLC4.4 standard.DLC(Design lights Consortium ) had published V4.4 standard. Compared with V3.1, V4.4 had more requirement on lumen efficiency. It required 90 lpw with fixtures, not only for the lamps.All led corn bulbs that cannot reach DLC4.0 will be removed from DLC website start from 2017.4.1. 40% -60% of led corn bulbs would be cut from QPL! Focus’s 100w LED Replacement for 400w Metal Halide  Most People will ask 400w 36000lm, 100w LED 12500lm. 12,500lm = 36,000lm? 100w = 400w?I will explain from following reasons:1.Features:1. Low-cost operation Using 100w of System Energy saves over $2,860 in energy costs over the rated life of  a lamp. Versus a standard 460W Metal Halide lamp system based on $0.11 kWh.2. The long life with 50,000 hour rated life at L70. Lasting 2.5X longer than the HID.Benefit:A simple upgrade that will work with many currently installed HID lighting systems. Uses existing fixture optics and ballast.Instant on/ Brightness. Open fixture rated. Temperature rating for -40℃ to 60℃. Doesn’t work on reactor or electronic ballasts.What is the tether kit used for?If experiencing bad fixture sockets, arching or environmental issues this level of protection is needed.When installing the tether kit read the instructions completely & carefully. VIEW MORE
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