When shooting energy-saving light bulbs, what methods can be used to make the tube glow while hiding the power cord? Which props can suspend the tube to show its threaded part and bottom? How to eliminate the flash of the flashlight on the tube? How to add tones and colors to the background for more fun, etc. In this way, you can take photos that look like the tube is glowing but not connected to the power source, and all other parts outside the tube are clearly visible and extremely impressive.