Using these LED flame effect globes is easy. First, make sure the power supply voltage is within the 100 - 245V AC 50/60Hz range. Then, simply install the globe in a compatible fixture, like the CLA KEROSIN series table lamps. You can cycle through 3 different lighting modes by turning the globe off and on. Remember, these globes are not suitable for dimming. When it comes to maintenance, keep them in an environment where the temperature is between -20 to 50°C. They have an IP20 rating, so avoid using them in wet or dusty places. If there are any problems within 2 years, you can get a replacement as per the warranty.