Specifically designed by Sunblaster this special CFL is the perfect tool for keeping your plants in the dark while working. Sometimes in an emergency you may need to be in your garden during lights out. Or it may just be that it is not convenient for you to visit your garden during daylight hours. These handy 13w & 23w CFL’s omit a spectrum that is plant friendly and will not wake up your plants but will give ample work light for you. They just simply screw into your existing household lamp fixture meaning it couldn’t be simpler just hit the switch and you have green light!