Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: I have a laptop and Epson Powerlite EMP-835 LCD Video Projector, but my computer does not have a vga output, it has HDMI. DOES IT WORK?
Document: I have a couple older 17&#34; LCD monitors around that have been pulled from service and this gives them a new life as a larger video monitor for a modern DSLR or HD video camera.My DSLR does allow me to select between 3 output formats, each of which is converted in a different manner to VGA.The converter can be powered by the HDMI attached DSLR. However, when possible I use an external USB supply to the converter to avoid the additional draw on the camera batteries.
Unit does not do anything it was advertised to do. It does not mater if the HDMI connection has HDCP of not this thing DOES NOT WORK.
We use these to connect an Apple TV device with HDMI output to an older Projector with VGA input. Little loss of  quality in the digital to analog conversion. No external power source needed is a great bonus.
That includes my BluRay player, my Xbox 360 and my PS3. And the X-1160P projector ahs only VGA, Component and S-Video im\nputs. &#34;So much for the home cinema&#34;? Not really. Being aware of this predicament, I reviewed quite a lot of HDMI-to-VGA adapters, always keeping in mind not breaking my 500-dollar limit budget. And I found this one!
Shipped quickly. I have it connected from my satellite box to a 22&#34; computer monitor with the video connected to an audio headset. Setup was fairly easy. On a couple occasions during setup it lost the video. Not sure why but it is working fine now. Might be because I hadn't changed the video setting on the box by that time. The only issue, and it isn't the fault of the device, is that I didn't realize the audio is not controlled through the satellite box.
I've gotten a few different HDMI to VGA adapters to be able to use older projectors. The specs for most of these never show the actual output resolution. I can only speak to it outputting 720p but I'd be confident it goes to 1080. I mention that because the previous 2 I used only output SD at around 640x480. They all convert 1080 but it's what it actually puts out that matters. I personally like it that it's powered by USB.
I want to use this converter to connect my DVD player and Roku streamer to my projector. I connected them with 25 feet of HDMI cable, it did not work in my first try, however, once I connected the USB cable to provide power for the converter, it worked very well. Thus, if you want to connect the converter and equipment with long or poor HDMI cable, the usb power cable is essential. The audio worked too.
Easily. Please note: if you're going to run the VGA, or the HDMI, through an extension (as I did, using two VGA-to-RJ45 adapters to throw my video cable up to 70ft away), you MUST plug the adapter to AC. The native power - coming through the HDMI EQUIPMENT, not from the adapter itself - simply is not enough for boosting the analog signal to such reaches.
eForCity HDMI to VGA Audio /Video Analog Mini Converter , WhiteThis product works & is powered by a USB cable supplied in the box, it allowed me to connect my cable TV set top box to my Pioneer 1000HD 50" plasma monitor in HD, it looks amazing, I was previously using an S video connection in standard definition & the difference is night & day.
Originally didn't work for my intended purpose, but found another use for it. Tried connecting my computer(VGA) to my TV(HDMI) first. That did not work because the HDMI must be your input. No biggie. Ended up using it the other way around for something else. More importantly the customer service i received was AWESOME and for that reason alone they get 5 stars from me.
Answer: It has worked perfectly fine for me. I've been using it for almost a month every day. It requires a USB connection for power source and an HDMI and VGA cable (A 3.5 mm audio jack if needed). Is plug-and-play meaning that no installation is necessary.