CMOS Inverter

It is nice to see the bars on both Mosfets going completely in and out instead of half way which is a common mistake seen often. However......notice that your top mosfet drops about 2v across itself. With the seen current passing through you can estimate the power that it is therefore using and so wasting as heat etc. If you alter the width setting of that Mosfet up to 2mm or more, you will see that the volt drop virtually disappears and gives about 5v out to the lamp. You can then use a resistor in series with the lamp as required. On a different point.....the lower mosfet is not really doing anything in this circuit and could be removed completely with the lamp working just the same without it.

This is how the NOT gates are working in your computer/phone etc. See the wikipedia article: https://en.wikipedia.org/wiki/CMOS

I appreciate your circuits and have commented in them with 'nice' when they are working properly. In those nice circuits there was a full voltage swing between rails. In this circuit here you have not configured the full swing properly...it is an EC thing which is necessary for your circuits to work. Look again at the article which you pointed me to and you will see that it explains the full swing of voltage there as follows: ..." In addition, the output signal swings the full voltage between the low and high rails"

I see that you have altered it now so that the top mosfet outputs 5v like I said, instead of the approx 3v which was the case when I wrote my initial comment.