Light is ESSENTIAL for all Cactus and Euphorbias to thrive. Choosing the correct location for your plant is crucial, as too much or too little light can be fatal. Remember that these plants come from habitats all over the world, and some types require much more light than others. We HIGHLY recommend doing some research on your plant to try and get a better understanding of its particular needs. It will thank you. When choosing between an indoor and outdoor home for your new friend, just imagine yourself standing outside all day in the hot desert sun with no shade from morning to night... that is “full light.” A plant that wants full light will never be happy living next to your TV, 10 feet from a window.