Actually we in choosing a solar street lamp, need not too care about the price, it's more expensive than ordinary electricity more affordable for a year or two down, we should focus on the practical application of solar street lamps, anyway, as outdoor lamps, for it is certainly to be able to keep enough brightness, in order to play its proper role. If brightness is not enough, that it is not and what is the difference between solar street lamps, for solar street lamp brightness is too high, also is no good, so it is easy to stab the pedestrian eye shadow, let a person can't see the front road. So we have to know their requirements, needs more high solar street lamp, then configure appropriate light source brightness, it can meet the demand of our lighting to the greatest extent. Should be in addition to solar street lamp brightness, also reasonable configuration of solar battery, solar panels and form a complete set of solar battery, should not only prevent and cloudy capacity is insufficient, can not meet the demand, has a capacity to avoid excessive and wasteful.