 
 <prompt> Wetin be di effect wey small voltage change fit get? Based on di question wey dey above, write small tori wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: The relationships wey dey above dey valid for only small percentage change for voltage around rated conditions, but e show say if person dey use lamp wey dey operate for much lower voltage pass the rated one, e fit last for hundreds of times longer pass the rated conditions, even though the light wey e dey produce go dey very small. The "Centennial Light" na light bulb wey Guinness Book of World Records don accept say e don dey burn almost continuously for fire station for Livermore, California, since 1901. But the bulb dey produce light wey be like four watt bulb. Another similar story fit be say for Texas, one 40-watt bulb don dey shine since 21 September 1908. E bin dey for opera house wey celebrities dey stop to see the light, and dem move am go area museum for 1977. 