【220V-240V】The voltage is 220V-240V, not 12V. Before installing or removing the bulb, turn off the power and ensure the input voltage is AC 220V-240V. 【Energy Saving】This 5W B15d LED bulb is equivalent to a 40W incandescent bulb, reducing energy consumption. With a lifespan of up to 30,000 hours, it reduces the frequency of replacements, saving time and money. 【Easy to Install】Standard B15 bayonet base, 18x53 mm, small enough to fit in fixtures with limited space. It lights up instantly without delay, generates less heat, and is safer than incandescent bulbs. 【High Quality】This B15d LED bulb is non-dimmable and not compatible with dimmers. It emits no UV or IR radiation and is flicker-free, reducing eye strain. It is suitable for sewing machines or craft projects. 【Applications】 B15 LED bulbs are widely used in sewing machines, cooker hoods, refrigerators, bedside lamps, table lamps, floor lamps, wall lamps, chandeliers, decorative lighting, accent lighting, and more. 【Contact Us】 If you have any questions, please feel free to contact us, we will provide you with a satisfactory solution.