WHAT IS THE DIFFERENCE OF IP67 AND IP68?
For solar lights,IP67 is the same as IP68.There are three reasons as follows:
• IP means Ingress Protection.The international safety standard for IP is IEC60529.IP codes have the format IP××,where the ×× represent numerals from the coding scheme(see Table 1 and Table 2);
Numeral Characterization of Ingress Limit
0 or X Not evaluated
1 ≥50.0 mm diameter object
2 ≥12.5 mm diameter object
3 ≥2.5 mm diameter object
4 ≥1.0 mm diameter object
5 Dust-protected
6 Dust-tight
Table I.The first numeral in an IP code indicates the degree of protection from solid foreign objects.
Numeral Characterization of Ingress Limit
0 or X Not evaluated
1 Dripping water:vertical
2 Dripping water:15°tilt
3 Spraying water
4 Splashing water
5 Jetting water
6 Powerful jetting water
7 Temporary immersion
8 Continuous immersion
Table II.The second numeral in an IP code indicates the degree of protection from moisture.
• In all practical applications,it is impossible for a solar light to immerse under water for long time because it couldn't be charged in such case.So IP68 for solar lights is nonsense.
• No solar light can pass through the IP68 testing for sure,because it can't be charged for a long time under the water.The IP68 expression in a solar light only be speculation gimmicks and attempts to mislead users. |
