From my experience maintaining lava lamps, using the right bulb is crucial not only for the lamp’s performance but also for safety. Many lava lamp owners don't realize that leaving the lamp on for extended periods can cause the bulb to overheat and burn out quickly. I found that 25 to 40 watt incandescent bulbs, like the Haraqi A15 or R39 models, strike a good balance between heat output and bulb longevity. When selecting a replacement bulb, always check the lamp’s specifications—most lava lamps recommend a 25 watt bulb, but some models support up to 40 watts. Using bulbs with the wrong wattage or shape might impair lamp function or cause overheating. Also, I advise unplugging the lamp and allowing it to cool before replacing bulbs to reduce any risk of burns or electric shock. In addition, consistent use of quality bulbs, such as the Haraqi brand, helped me avoid frequent relamping and improved the motion of the wax. If you notice your bulb burning out fast, it might be due to overuse or incorrect wattage. Try switching to recommended incandescent bulbs and monitor your lamp operation times to prolong bulb life and keep your lava lamp looking its best. Ultimately, caring for your lava lamp with the right light bulb ensures lasting enjoyment and reduces hassle from frequent repairs or replacements.