I originally purchased a converter, 1/4 of the price of this one - but it failed to convert the composite video signal from my bird box camera. It alternately flashed the correct image, then a 'no signal' message every second, so couldn't cope with the relatively low strength video signal. I returned that one and decided to purchase this one, as it appeared to be a more robust unit with a better specification, anticipating improved amplification. I was pleased to see that this was a good buy, as it works well and the image is as good as with the direct input to my old TV.