Patent UV tester check low, moderate, high or very high/extreme level of Solar UV radiation through series of color change.

Patented UV tester check low, moderate, high or very high/extreme level of Solar UV radiation through series of color change;

The center area of the Patent UV tester change colors according to Solar UV radiation, higher the Solar UV radiation, darker the color change, compare the color change to the 4 standard colors(low, moderate, high, very high/extreme) around and you can see low, moderate, high or very high/extreme level of Solar UV radiation;

Tell you when is the best time to use solar charger or similar solar equipment effeciently:

Low: UVI 1-2,Solar energy equipment can not be used;

Moderate: UVI 3-5,Solar energy equipment can be used but the efficiency is low;

High: UVI 6-7,Solar energy equipment can be used but the efficiency is mid;

Very High/Extreme: UVI 8-11+,Solar energy equipment can be used and the efficiency is high.

Tell you UVIndex and SPF of sunscreen you should apply:

Low:UVI:1-2,SPF <5,sun protection not necessary;

Moderate:UVI:3-5,SPF <10,sun protection recommended;

High:UVI:6-7,SPF< 15,sun protection necessary

Very high/Extreme:UVI:8-11+,SPF<30,,avoid exposure to the sun;

China Patented and CE&ROHS Certified.