Assumed #top anchor. If creating an destination anchor to scroll to the top of the current page, be advised that some browsers [1] appear to âassumeâ a #top anchor (not visible in the page source code). As implementation of this feature appears inconsistent, it is preferable to insert a #pagetop destination anchor instead: .
Once it cools, it should function properly again. A lava lamp may overheat in eight to 10 hours, depending upon the bulb and brand of lamp. Use the lamp for less than eight hours at a time for best results, allowing it to cool to room temperature before using it again.
The life of a 48-inch fluorescent light bulb, technically called a fluorescent lamp, depends upon its wattage, design and application. A typical 32-watt, 48-inch fluorescent lamp will burn for about 20,000 hours, if normally left on for about three hours at a time. The same lamp, left on 24 hours a day, will last about 34,000 hours.