Assertion: white headlamp | /r/CapableOf | produce 20 to 30 percent more light
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Source sentences:
text: Formal research found, at best, a small improvement in visual acuity with yellow rather than white headlights, and French automaker Peugeot estimated that white headlamps produce 20 to 30 percent more light—though without explaining why this estimate was larger than the 15% to 18% value measured in formal research—and wanted drivers of their cars to get the benefits of extra illumination.