Hi gdupont,
I wouldn't go with the first choice (25W 0.5M LED Grow Light Strip ...) as:
1 - It's longer than your tank (50cm strip on a 41cm tank) and hence you'll be wasting the light that falls outside the tank
2 - Each strip is 5W. You'll be needing to use at least 3 strips (15W). You have to find a way of fitting them over your tank. As the strips do not come with a housing you'll have to work out how you're going to do this.
3 - You need to organise a 12V DC 30W power supply (as I had to when I bought strips).
Your other choices are more promising as the form factor (round) is more suitable for your case AND you just plug them into the mains using a screw (Edison) connector and you're in business.
I'd go with your second choice "Twin Pack LED Grow Lights for Indoor Plants" as it's spectrum coincides well with the absorption spectra of chlorophyll a "The absorption peaks of chlorophyll a are at 665 nm and 465 nm" (see
https://en.wikipedia.org/wiki/Chlorophyll). Must admit that I'm not an organic chemist so I'm going by what Wikipedia says. The product description also says "Recommendation is to use 1 bulb per 30 sq in area at 30 in stand-off". I'd start using 1 and carefully introduce another (using it it for, say, 30 minutes at a time and checking for leaf burn\bronzing).
Your tank is quite small and you may have difficulties fitting many plants in it. You may soon find that you need a bigger tank.
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