With 50 years of research OTT lits True colour lighting is scientifically formulated to help artisits and carfters see colours accuratly and details with remarkable clarity. Ott Lite provides a low heat high contrast illumination that helps reduce eye strain, making crafting sewing or reading more enjoyable. Long life, energy efficient bulbs are rated to last 10,000 hours, nearly 12 times longer than standard lighting.