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KOSMOS | Easy Elektro - StartEasy Elektro Start Kurze Beschreibung: Wie baut man ein elektrisches Codeschloss, wie hoch steigt die Luftschraube bei voller Leistung und wie erzeuge ich mit Magneten Strom? Der KOSMOS Einsteiger Kurs zum Thema Elektrizitt und Magnetismus: Intuitiv und kinderleicht Dank der Easy Klick Bausteine. Von 8 bis 12 Jahren. Lange Beschreibung: Wie baut man ein elektrisches Codeschloss, wie hoch steigt die Luftschraube bei voller Leistung und wie erzeuge ich
Easy Elektro - Start
Kurze Beschreibung:
Wie baut man ein elektrisches Codeschloss, wie hoch steigt die Luftschraube bei voller Leistung und wie erzeuge ich mit Magneten Strom? Der KOSMOS Einsteiger-Kurs zum Thema Elektrizität und Magnetismus: Intuitiv und kinderleicht Dank der Easy Klick-Bausteine. Von 8 bis 12 Jahren.Lange Beschreibung:
Wie baut man ein elektrisches Codeschloss, wie hoch steigt die Luftschraube bei voller Leistung und wie erzeuge ich mit Magneten Strom? Wie funktioniert Elektrotechnik im Alltag? In sechzig Experimenten rund um physikalische Phänomene wie Strom und Spannung, Elektrizität und Magnetismus tauchen Kinder spielerisch in die Welt der Elektrotechnik ein. Mit dem kindgerechten Easy-Klick-System und genauen Bauplänen führen die Nachwuchs-Forscher die Versuche selbst durch: Sie nehmen erste Messungen vor, experimentieren mit einem Elektromotor, bauen Alarmanlagen mit Relais und erfahren Schritt für Schritt, was mit Elektrizität alles möglich ist. Die Anleitung vermittelt anschaulich, wie die Schaltungen aufgebaut werden und wie sie in einfachen Alltagsgegenständen wie Türklingeln und komplexen Geräten wie Kernspintomographen Anwendung finden. Ein toller Einsteiger-Kurs zum Thema Elektrizität und Magnetismus!Weitere Details:Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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- To process your return/exchange, please contact us at [email protected]
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4.4 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Great quality and protection.
Model: iPad 11th A16 2025/10th
I'm really happy with this screen protector. It fits the iPad perfectly and doesn't interfere with cases. It feels very sturdy and scratch-resistant, giving me peace of mind. Definitely worth it.
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Reviewed in the United States on May 31, 2026
★★★★★ 5
Easy set up
Model: iPad Pro 12.9 2022/2021/2020/2018
Nice product. I cracked my screen in my iPad and wanted something to keep it from getting worse
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Reviewed in the United States on June 12, 2026
★★★★★ 5
4 years on - Still - A very good printer, if you can ignore its demands to update firmware
Style: WF-7840, Set: DUAL TRAY (500 sheets)/FAX/ADF/PRINT/COPY/SCAN
Summary:
It is an excellent printer (4.6 out of 5) if you don't mind its constant requirements to update the firmware, which I have not since the day I bought it. I have had this printer for over a year. It has printed close to 5,000 pages of different sizes, papers, colors and document types. As someone said in the other posts (a big thank you), firmware update is only to drive users to get Epson's proprietary ink cartridges. When the printer harasses me to update the firmware, I just keep on ignoring it. Epson does a good job to harass you both on the printer and computer - just ignore it.
Pros:
1. Only printer for <$500, which could print Ledger paper (11x17), which was a must for me. This thing prints beautiful and very crisp AutoCAD drawings. The lineweights and scales are phenomenal.
2. Excellent printing quality using stock and generic print cartridges. The printer can be really customized to get the right tones and textures for your print. Works very well with heavy stock papers and photo papers. I am yet to try any stickers, but I do not foresee any issues with it.
3. Good printing speed. It is not blazing like the commercial printers you find in the offices, but it is very fast for what it does.
4. Excellent connectivity. I had no issues with using either Ethernet or wireless. The printer can print on my Windows devices and Mac machine. I do not print from my phone, so cannot comment on that.
5. Heavy duty. The printer has printed approx. 5,000 pages so far without any troubles. I have not seen it overheat nor do any weird activities when it is printing.
Indifferent:
1. Scanning. While scanning quality is very good, the direct scan option is cumbersome. You cannot use the scan button on the printer to scan into the computer disk. You have to go to the computer and activate the scan software to perform scanning. This can be an issue, if you have a setup where your office is on one floor and the printer is on another, like I have in my home.
Cons:
1. Heavy. This thing is decently heavy and bulky. Don't try to keep on moving it or have it in your mobile office. Also, make sure to have a good sturdy and stable table. The printer twerks, jerks, sashays, parries.
2. Constant harassment to update the firmware. It can sometime be very annoying, but that's a small price to pay, if you get to ignore it. Look at the bigger picture.
Price:
When I bought it, the price was just below 3 bills, I understand it has gone up by half a bill (however, I am seeing the price going >$400 on some occasions). The new price of 3 and a half is not bad given the shape of the economy and supply chain issues. Also, the OEM cartridges (812) are cheaper at Staples than trying to Subscribe and Save here.
Bottom-line: A very good printer, if you ignore and disprove its petulance to update itself.
Update 3/23/2023 - I have had it now for over 2 years. The printer continues to print flawlessly and as of now has little under 10,000 pages printed of different sizes and paper weights. It still begs to update its firmware, which I have not done since its purchase. The only wishlist item I have for this printer is if it were to come with the Epson ink-tank.
Update 3/28/2024 - Three years into it I have, still not updated it. The printer continues the work. I have now printed about 12,000 pages. In December, after I replaced all my cartridges, it started missing colors' tones, textures, and locations. Did full printer head alignment and cleaning twice (instructions are clear on the printer screen under Settings-> Maintenance menu). Printed test pages, and now it is working flawlessly.
Update 3/20/2025 - Marks 4 years of running this printer. Definitely the least amount of pages printed annually - about 1,500. No firmware update performed and it still cries to update. Still running strong on both inks - generic and branded. There is a seller on eBay that offers XL cartridges for the colored ones too. Definitely worth giving a shot. If you are in a market for a prosumer printer consider this one in your list, if you can get it below $300.
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Reviewed in the United States on May 4, 2022
★★★★★ 5
Back with Epson after 5 year break of 2 Decades of Epson usage
Style: WF-7840, Set: DUAL TRAY (500 sheets)/FAX/ADF/PRINT/COPY/SCAN
Monster of a printer/scanner/all-in-one. Love it so far. No issues, I just need to get used to all the options. I have it for my home office and business. I veered away from Epson 5 years ago after 2 decades of Epson printers but I am happy I am back with Epson. Jet ink, one needs to print color every one or 2 weeks or the jets may clog on any ink jet printer. I have been there many times..... test print if needed.
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Reviewed in the United States on May 27, 2026
★★★★★ 1
EPSON PRINTER WILL NOT PRINT-BEWARE PLEASE READ THIS BEFORE YOU PURCHASE.
Style: WF-7840, Set: DUAL TRAY (500 sheets)/FAX/ADF/PRINT/COPY/SCAN
The first thing I have to comment on is the number of firmware updates Epson insists on sending to their printers. But its not to make the printer operate better, it to keep you from using an after market remanufactured print cartridge. They are absolutely ridiculous to the point of anal trying to stop people from using a remanufactured ink cartridge. They are constantly updating the chips on their ink cartridges so its so, very difficult to use anything but a genuine Epson new print cartridge. Now there was a class action lawsuit against Epson because of this and Epson lost the lawsuit and was ordered by the court to stop making it impossible to use remanufactured (refilled) ink cartridges, but Epson is ignoring the court order. NO OTHER COMPANY REQUIRES YOU USE THEIR INK CARTRIDGES LIKE EPSON. I have always used genuine factory cartridges in ALL MY PRINTERS, the Epson I explain below never had a remanufacture ink cartridge put in it ever. I would never ever recommend a friend or family member to ever purchase an Epson printer. If you print with varied print specifications like paper size or specify a tray to print from YOU DO NOT WANT THIS PRINTER OR ANY EPSON PRINTER. First of all the printer is slow as molasses. It does not print anywhere the speed they claim. The Epson software and print drivers are very badly flawed. I have been trying for a little over a year to figure out the best ways to get a print job done, and not get the warning "your paper does not match your paper tray selection" . Time and time again I have specified 11x17 paper, which is in tray 2, (only fits in tray 2) and I get this darn warning time and time again. "Your paper does not match your paper tray selection". I have gone to the extent of removing paper completely from tray 1 and purposely specify tray 2 to in my printer properties, and I get the darn dialog box warning anyway. I called Epson customer support and it is like talking to a wall every single time I call them. THE CUSTOMER SUPPORT IS USELESS. So I unplug the printer and let it sit for 10 minutes. I then remove all print jobs from the que. With the same exact properties as the previous attempt sometimes it would print. Then, the other issue with this printer, is I continue to get paper feed errors. I remove both trays and I shine a flashlight in the empty tray spaces and there is no paper in either tray space or in the plastic feed guides. I then remove the back cover which totally opens up all the paper paths. Still no jammed paper is found. I meticulously put the back cover on and put the trays back in. Then resend the print command, but still, it gives paper feed error. I take it all apart again, I remove the printer from the stand and move it to the kitchen counter which is much higher which makes it easier to look inside at every nook and cranny. Still no jammed or misfed paper. Put all back together again, do everything exactly like I did it before and sometimes it will print, and sometimes I get a feed error. I have had to take the darn thing apart as many as 3 times to get it to print without a paper jam error. I DO NOTHING DIFFERENT THAN I HAD DONE EVERY TIME, but finally it prints. I called customer support at least 4 times. The response I usually get, “that is impossible you are missing a piece of paper that was jammed. “ This last time I took 14 pictures of all the paper pathways from front and back of the printer. I called and explained what was going on, again, and told them I wanted to send the pictures, but they would not let me. I hung up, I removed the printer from the stand and threw it as far as I could out the back door of the house, which I should have done after the second time occurred on any of the issues. That would have kept me from wasting my time and getting totally used up with their customer support at Epson. But this last time I had a deadline which was dropped on my shoulders by State Farm Homeowners insurance with no prior warning, and I HAD to get a printed copy down to my agent. I ended up driving to Office Depot and printing it there. Now I will say one thing, NO COMPANY HAS A PRICE LIKE EPSON HAS, on a printer like this that will print both 11x17 or as big as 13x19 and 18x22 inch paper. The next best prices is over $2000.00. To add insult to injury, I have the Amazon extended warranty option on everything I buy from Amazon, but Asurion ( that’s who does the Amazon extend warranty) would not cover it because they said it was a factory defect. I have asked for proof and they said they would send me documentation.
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Reviewed in the United States on November 19, 2025