Epson Projector High Pitched Noise

The CyberPower UPS started making a high-pitched whining noise. It seemed that the battery had no more life in it so I replaced it with this replacement cartridge from B&H. It is now working again and I hope to get another 5-6 years out of it. It didn't come with a way to recycle the battery so I'm hoping to find somewhere local to dispose of the old battery pack.

I bought this to replace an older larger Epson projector. This units is very nice for the price It's about half the size of my old one, so the space savings is very nice. It's not as loud as some of the other reviewers indicated. It's not super quiet, but it has to have a fan to cool it, so you should expect some noise. Again, at this price point, I think the noise is acceptable. I use it to teach small groups and the noise is not a problem. Works as advertised. I'd buy again.

“This is a review for the Epson EpiqVision® Flex CO-FH02 Full HD 1080p Smart Portable Projector projector that I received free of charge to do a beta test and review.” I really like this projector alot!..... I have several Epson products and this is a winner! The set up was so easy and fast.... I am very impressed with how bright the projection is even in full daylight in my studio! Also, the Auto Keystone Correction was great!....Thats a huge plus for me. When I tilt the Projector up, it adjusts the image for the angle....Love that! Another HUGE bonus is the speaker!.....I was shocked at how good it sounds on its own... and that is VERY rare for a small projector. Impressive! The resolution on this projector is quite amazing!.... I projected an image equivalent to about 90 inches wide and it was super clear, and very sharp! I do wish that it had a zoom feature, but thats not a deal breaker at all. The fact that this powerful projector easily fits into a backpack or small luggage is fantastic! I travel alot and will take it on many trips. I do wish that it had more HDMI Ports.... but I can use an external hub. Big plus that I love is the Android feature! I use Android Phones and this will come in handy in so many ways! Overall, this Epson is a WINNER to me....its light weight, sharp, great design and very affordable!...

[This review was collected as part of a promotion.] This is the perfect 3-in-1 charging stand. I’ve used others in the past that have made a very high pitched sound when charging, but this one is completely silent. It charges my phone, AirPods, and watch extremely fast compared to other charging stands I’ve used. It’s also super sleek and looks great on my nightstand!

Placed inline between dbx zonepro 640 outputs and QSC amplifier that was having a high pitched buzz from dirty 120v electric plug. Buzz gone as soon as these were plugged in

Just a wonderful CYC light. We ordered 5 and unfortunately one of the 5 gave off a hideous high pitched screech when powered on. Contacted customer support and they have sorted everything out as our replacement has just arrived. Overall extremely happy with the product.

This is a review for the Epson Powerlite 1781W Projector that I received free of charge to do a beta test and review. This is my first projector and I cannot be more impressed. The size is perfect to for taking from place to place (just a little thicker than your average laptop). The projector was easy to setup and I was up and running in minutes. Image quality is superb and the wireless function is one of the best features if this projector, sharing my phone/tablet screen was simple and there was almost no delay between my tablet and what was being displayed. An external speaker is a good idea but not necessary. I will definitely recommend this projector to my colleagues for anyone looking for new or an upgraded experience.

This projector bag is fantastic & is a perfect fit for my new Epson Powerlite Projector. The material is light and yet durable and helps to protect my investment. Also the front pocket holds any cables I need to bring with me when setting up the projector.

This is a review for the Epson Powerlite 1781W Projector that I received free of charge to do a beta test and review. Unboxing of the projector provided many useful items I did not expect. It came with multiple cord configurations perfect for traveling on the go. It came with a portable carrying case which was very padded and provides superior protection. The remote itself is good size and has lot of useful functions. Once the projector was unboxed and setup it did have a bit of a challenge installing all the software. You need 2 programs or sets of install to have this function for my use. If you only install the wireless one your computer can not connect to the internet. It did take me some time to troubleshoot and fix this. The quick setup instructions should have been a bit clearer on this. Overall the design and button layout of the projector was great. The size and compactness of the projector is amazing. One of the things I did notice once the projector was turned off is that it almost immediately cooled down, so I didn’t really have to wait to put it away. All in all, I would say this is an outstanding product that I would recommend. A+++

“This is a review for the Epson Powerlite 1781W Projector that I received free of charge to do a beta test and review." The Epson 1781W is a well rounded, thin-and-light projector, with good brightness and resolution, very good data and video image quality, and a wide range of connectivity choices. One of its few shortfalls is that as an LCD-based projector, it cannot project 3D content, which you can find in many portable WXGA data projectors such as the ViewSonic PJD6544w. But that only matters if you need to project in 3D. For its winning combination of features and performance at a reasonable price, the Epson PowerLite 1781W Wireless WXGA 3LCD Projector is our latest Editors' Choice ultra-light WXGA data projector.