Superior omron limit switch On the internet through Any Electronics Co., Ltd.
The corporation specializes in giving electronic products including omron limit switch, programmable timers, programmable digital timers, proximity switches, inductive linear sensors, photo-electronic switches, optical screen sensors, strong state relay, and switch energy provide, amongst other individuals. The consumer friendly web-site aims to provide exceptional excellent at economical prices to service seekers across the globe.
Located in China?¡¥s Liushi, Any Electronics can be a enterprise that prides itself on continually adapting to technological improvement. The corporation supplies solutions in machinery manufacturing, motor technique handle, distribution transmission, handle device, oil and mining, automation business, solar manage, lighting control along with other such locations. The enterprise also supplies new item improvement and OEM services. All solutions supplied are strictly as outlined by ISO9002.
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I only have the 20W led. I want to know if there's anything special besides a transformer and 2 wires to light it up..?
And got the following answer:
If it is 20W for 1000 Lumen then it is 50 lumen per watt - about the same as fluorescent lamps (50-100lm/W). The first link shows one type, limited data found, but note the comments on heat-sink issues. The second link is a data sheet, showing one type that needs 12-15V @up to 1.4A. The biggest issue is temperature. Surprisingly there is no thermal resistance spec. However the Tjmax (max junction temperature) is 120C, so allowing that we don't want it that high, if the ambient is 50C and the Tj is 100C, that means 50C rise is allowable, and that means an overall thermal resistance of 1 degree C/W, including whatever the junction to case is. A heat-sink with 1C/W on its own is a large multi-finned thing about 150 x 150 x 50mm, so this LED needs something like that with a fan, to run at full power. The connecting leads are apparently also the heat-sink (thermal) connections, so you will need to devise a way of splitting and insulating the heat-sink, so the electrical connections can be made while the heat is also conducted away. The heat-sink will be close to boiling water without a fan, so no bits of plastic around. A fan is essential, unless the power (current) is less than the full power.. The driver circuit: This will be a constant current supply that provides > 14V DC on no load, with the current limited and controlled to 1.4A or less, preferably adjustable. The voltage will pull down to the LED voltage when connected. It is definitely not a transformer, or the normal wall adaptor that produces a constant voltage. It will need a special device. I did find some Omron units (Farnell) but they were > $100 and rated for 24V so not sure they would even be suitable. However this is an indication of the price. It would be possible to use a constant voltage 24V x 2A (using up to 1.4A) supply with a series resistor as the ballast. This resistor would be calculated using ohms law as (24V-12.8V) / 1.4A = 8 ohms so an 8.2 ohm power resistor using standard value. The power rating of the resistor would be V x I so about 16W. At least a 25W resistor size is needed so it won't get too hot. This method is wasteful, but it will work so you can see how hot it all gets. An old DC type power supply for a lap-top might suit this if the resistor is recalculated for the actual voiltages (could be 18V) A true supply for this needs to be a switch mode regulator using an inductive ballast, running from 24V (derived from a wall outlet) and designed as a current regulator.
The web page sports an in depth catalogue showcasing its items. In addition to a number of descriptive photographs the catalogue incorporates product particulars for example item size, installation data, and product functionality data.
The web page also capabilities a video section with tutorials that particularly clarify the omron limit switch numerous electronic solutions that the corporation specializes in.
Service seekers are able to view the solutions either according to the Solution Categories supplied or the latest Products or perhaps Feature Solutions. The latest products incorporate such items as Holiday Time Switch ATP 1006-5, Solid State Relay SSR3, omron limit switch, and Preset Counter AH5K. There is certainly also the choice for clients to view particular solutions with all the search engine supplied on the site.
The Any Electronics firm web page also showcases a blog for consumers to get a comprehensive understanding of the electronic products offered.
Any Electronics is geared to delivering its buyers with all the best doable service in terms of value for price. In regard to buyer care service the web site delivers a Skype service exactly where clients are capable to speak to suitable consultants to clarify any inquiries. There is certainly also a kind offered on the website exactly where service seekers can fill in any queries they might have or feedback they might prefer to give.
The company caters to countries all over the world. Its clientele involves countries from the USA, Europe, South East Asia, and Southern Africa. Any Electronics Co., Ltd. also functions as an agent for Temperature timers in Taiwan. The web site states that the cause behind its global accomplishment may be the excellent quality of its electronic things. Furthermore, the price tag quotations supplied are affordable in regard towards the superior worth of its solutions.