Noobie is trying to match a solar power bank and a wireless camera
First thing is to match a solar panel to the load.

You need 7 W, but your panel should be rated for much more, because the average solar energy per day (taking into account the night, clouds and seasons) is a small fraction of the peak power; in the winter in high latitudes you might get 10 to 20 times less. In that case you're looking at a solar panel rated around 100-150 W. If you're restricting yourself to the summer time in bright climates you'd need around 30 W.

The solar panel in the item you posted is said to be 1.5 V, 150 mA. If that's correct, then it can only produce 0.2 W. That is 10-100x too little. No matter what kind of battery is inside, it will never be able to recharge.

Once you have a suitable panel you can start to think about the battery size you need to get you through the night and the cloudiest days. Your camera is a 12V system, which is good because you can buy parts meant for 12V off-grid systems, eg. a solar charge regulator and a battery.