How to distinguish solar barricade lights quality is good or bad? There are several ways

1 180V ~ 260V power supply is directly connected with the aviation obstacle light, such as lamps normally work, beacon warning light  lamp working voltage range. Life is long. The poor quality of the solar barricade lights high voltage test in 20 minutes to burn.
The 2 lamp shade hit not broken. Direct percussion with a hammer lampshade, if fragmentation, show that the lampshade poor impact resistance, UV resistance and weather resistance difference. In the led traffic barricade lights  area of outdoor hail from attacks and long-distance transport lamp easily damaged.
3 in the 1.5 meters height let lamps do free fall experiment, switch on the lamp power lamp can still work normally.
4 sulfuric acid or weak acid water poured industrial warning light  on the lamp body external. Solar barricade lights in part of the pollution in China is serious areas or coastal areas short service life.