Currently solar LED street lamps' the main problem is the high cost.No matter from which on the one hand, at least to ensure that the correct requirements, one is the guarantee for eight hours, again is the normal work of the rainy day, with good quality is for three years, and light bulbs are 10% a year, according to the basic requirement is luminous flux is less than 30%, to ensure the basic configuration of execution, according to the theory and practice of the lessons is that in the northern region is 4, in the Tibetan areas in Qinghai is 3, that is to say, power and battery.

To reduce costs, there are only three ways. The first is to optimize the design to improve the efficiency, the second is to change the configuration to reduce costs, and the third is to improve the light efficiency to reduce power.

For solar terms, from 1980 to 2005, the efficiency is improved by 3-4%, so the room for improvement is very small, three years is expected to be 1 to 2 percent, to reach 15 to 16 percent would be good. For the efficiency of the controller, domestic outstanding has reached 0.975, 96% abroad, nearly two years to improve the space is only 2 to 3%, it is impossible to reach 99%, 100%. For efficiency lamps, solar power is used in low-power, at 50W or less. 50W sodium lamp made after the test is 60 to 70%, energy-saving lamps, high-pressure lamps, and metal lamp, because there is the electronic energy resolution, bad times are mostly electronic distinguish damaged, and LED lamps which light source It is excluded.

LED efficiency should be greater than 100 lm / W, and the efficiency of the constant current circuit is greater than or equal to 90%, preferably chosen step-up, or step-down because (DD311 DD322) chip efficiency is greater than or equal to 80%. Several Boost America's new chip efficiency is greater than 93%. In addition to reducing the backlight loss, because now a lot of home lens is poor, light-transmitting material is not the same, some good light transmission ratio of the lens, some translucent poor. led explosion proof lighting https://www.eneltec-led.com/products/led-explosion-proof-lights

Efficient LED only three now, 6 ~ 8 hours, lithium battery, battery the smallest can also make it an LED, can one minute to load.08 domestic commonly used specifications and the price is 35 w. For development opportunities, has two, one is the price of solar panels fell sharply, from 07 30 multivariate into 10 a few yuan of money now, especially in the last year before October; The second opportunity is the domestic LED luminous efficiency is close to the 100 lm/w, so the price down at about 25% every year. best led headlights http://bestledheadlight.com/