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What is the fade back speed of Transitions XTRActive lenses in cold temperatures?

April 26, 2017cold fade lenses speed temperatures transitions xtractive

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What is the fade back speed of Transitions XTRActive lenses in cold temperatures?

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In terms of fade back time, at 73° F (23° C), after 15 minutes of activation, Transitions XTRActive lenses fade back to 70% transmission after 14 minutes, compared with nine minutes for Transitions VI lenses. Please refer to the chart in the Technical Product Notes for more information regarding activation and fade back speeds.