I have reservations about feeding bees sugar syrup as a general practice. My feeling is if your colony grows accustom to getting some of their food inside the hive they will be less robust foragers and you will breed this trait into them over time. That said, the hive I have left this year has completely eaten through its honey reserves for the winter and if I do not feed them I might as well just empty the hive. I will not buy another colony again. I will try to get this one through the winter, but if they do not make it, they will be the last hive I pay money for.
If you need to feed your hive you can do it very easily. The only equipment you need is a couple mason jars with lids and something to hold them upside down. I bought a couple holders made for this purpose from my local bee supplier, they were cheap and very good at what they do. I took the plastic holders and screwed them to a piece of wood. The mason jar lids need tiny holes in them to let the sugar syrup slowly drip out.
The sugar syrup is pretty simple to make. It is a 2 : 1 ratio of white table sugar to water. This will be thick and will slowly drip out of the holes in the lid when turned upside down. Once the bees find it they will constantly harvest it until it is gone.
The reason I screwed the jar holders to the board is so I could use them in my top-bar hives. The plastic holders are specifically made for Langstroth hives, but with a little modification and they will work in top-bar hives. The bees will find the sugar syrup pretty quickly and start to bring it over to the comb in the hive. I have drilled holes in my follower boards to let the bees come and go through them. However, there is a gap below the follower boards that the bees use instead. That is a design flaw in the way I constructed the follower boards. No big deal in the long run though.