Using these GU10 LED colored globes is easy. Just install them in a compatible fixture and connect to a 220 - 240V AC power source. They can be used with 2 - way switches or PIR sensors as needed. When it comes to the temperature, make sure the environment is between - 10 to 40 °C. Avoid using them in extremely wet or dusty places due to the IP20 rating. For maintenance, simply keep them clean with a dry cloth. If there are any issues within the 2 - year warranty period, you can get a replacement.