I also ordered a Rydeen ZH07-150B Mobile DUO Mini Backup Camera from the same eBay vendor, a 16 pin rear camera harness, and a reverse gear wire from SVXdc. Before I purchased the camera I emailed the vendor and asked if it came with the same accessories as the boxed version. He replied yes. I received the camera today.
Like 808BRZ's camera it did not have a model#/serial# sticker on it, only QC stickers. The round QC sticker on the camera date code is 11/14. It could be that this vendor is buying them in bulk from Rydeen or their distributor.
I have not yet received the 16 pin camera harness so I purchased 4 cheap heavy duty 1.5V C cell batteries from the Dollar Tree to test it on my TV. I checked them in series with my multimeter and got 6.42V. Hooked the camera up to my TV and to the batteries and got a clear picture with the guide lines.
So hopefully it will work on 6V with SVXdc's 16 pin camera harness. I'll post back when I receive it and test the camera.
I do not believe that this camera is a Chinese knockoff. The camera, wiring, and stickers on the wiring, look exactly like the picture of the boxed version that this other vendor on eBay has for sale for about the same price:
http://www.ebay.com/itm/Rydeen-ZH07-...item4873c85860
808BRZ,
If your camera will not work on 6V contact the vendor.