You can't choose color. Charging may not enough in the car or through a window.Be sure to get direct sun. Can not be charged on rainy or cloudy days.Please get sun light on sunny days. Performance of storage battery will fall gradually.Standard
I can evaluate the point that batteries are unnecessary, but it is hard to use that lights do not light unless you press the switch. I thought that it was easy to use if there was a switch on / off switch.
Even after charging, I bought several pieces, but only a few minutes. I am dissatisfied though there is no problem because my use time is several seconds. The most shocking thing is that the same things are sold at the major 100 yen shop "Da ○ ○ -".