Led solar street lamps same cases, low price of the issue

Relative to the knowledgeable people certainly understand, led solar street lamps same cases, smaller voltage, electric current will become bigger, then responsible for what will be easy to burn out, the main problem is 3. 7 v street light there will be 12 v solar lights? Three times larger current, service life is shortened 3 times, may be in the sight of you feel is cost-effective, a lot of cheap money, but later it will be very troublesome, after-sales, more serious may let you do engineering career to an end, you will want to use this a little bit of small profits to bet? Now the price of led solar street light big guy knows, more with lithium batteries, solar street light system voltage, as you know, normal is 12 v, lithium battery street lamp in order to form a complete set to use, also need to make 12 v lithium-ion batteries, but lithium battery of single voltage is 3. 7 V, this is three times as much, the same 30 ah lithium battery, 12 V and 3, 7 V will be 3 times the price difference. It also gave them chance to cut corners. Doing business of led solar street lamps, there can be no off-season and busy season, because we lighting quality, do is after-sale, cultured is credibility, but those small workshops are more difficult to survive, in order to receives orders in the offseason, is also take great pains, they can only keep lower price a little bit of competitive advantage, but the cost is transparent, how can they meet the requirements?