Christmas Tree Lights All 20 lights illuminate and blink when plugged in. They emit a simple, warm light, warmer than LED lights. The bulbs are colorful and have a very cute design that is rarely seen nowadays. Each bulb is shaped like a flower. The bulbs are blue, green, red, yellow, and pink, in 5 colors. One spare bulb is included, but its operation has not been confirmed. They come in their original box, but the box has age-related wear and tear. These have been stored at home. Please understand that these are old items.