Welcome to ATP, Mother Raphaela. Sad to say, only sunshine will make your citrus trees bloom. Artificial light is not a substitute for sunlight, unless you have a large, very intense bank of fluorescent grow lights right down within a foot or so of the plants.
Try to find a south or west facing window that gets at least some direct sun in winter, and put the plants in front of it. Then when it's warm enough in spring again, get them outside as soon as you can into full sun all day long.
For the rest of the summer, do try to keep the plants outside when the nights are not too cold. They need every minute of sun you can give them. Just watch the weather forecasts. Citrus groves here in Florida have nights in winter that go down into the 40's regularly, and even into 30's at least a few times each year and do fine, with some help from fans and water application. But it is best to keep them warmer if you can of course, especially because a citrus tree in a pot will get cold much faster than a big tree in the ground.
Long term, a greenhouse is the answer for growing citrus in NY, and greenhouses are expensive not only to build but to maintain, and to keep warm in the winter.
There are also greenhouse 'services' in some places where a person with a large greenhouse will 'babysit' other people's tropical plants for a fee. Perhaps a kind neighbor or church member would do this for you?