This set includes a total of 500 lights, an even mixture of red and white light bulbs. They are all super bright, long lasting, and they will continue to stay lit up, even if one of the light bulbs is missing, broken, or burnt out. The wire on these lights is cased in green, and they are rated for both indoor and outdoor use, to better suit your needs. They are well synchronized for flawless display at any time. You can choose from still burn or 7 other special lighting effects so that they flicker, flash, and move in whatever patterns you want them to. They are incredibly easy to hang, operate, and change the pattern of lights that you want, and they meet all safety requirements for lights.