Buy the led street lamp

As we have mentioned many people with one yuan, how much the led street lamp can be evaluated and we know is wrong, in fact, we should pay more attention to the following a few questions first luminous efficiency, and now the price of led road lamp posts lighting products with each passing day, the

we mentioned before, many people use a dollar a watt to evaluate the advantages and disadvantages of led street light. We know this is wrong. In fact, we should pay more attention to the following questions first, luminous efficiency. Now the price of led lamp are changing every day. Among them, the high power led light source, Each lamp tile) Most mature technology. Conventional led lamp bead light flux has more than 130 lumens per watt, laboratory flux has more than 200 lumens/watt. With the progress of technology, its luminous flux in increased steadily. Should explain here is, the bigger the luminous flux, luminous efficiency is higher, the better the energy saving effect. This is the most important indicator when buying led lights. The second is led street lamp light attenuation. Due to the intense competition of led lights market and increasingly fierce price war, some unscrupulous businessmen in order to reduce costs, choose some poor quality and droop extremely serious led lamp bead, when droop to 80% life only 1000 hours, cannot be used as need long-term lighting led street lamp. Qualified led lights down no more than 3% a year, or less. Another thing is to look at the structure of the LED street lamp. Due to the led street lamp hung from the outside, long exposure in the wind, frost, rain, snow, so the structure of light emitting diode lamp holder and its ability to resist the wind, rain, heat must be high. Some manufacturers in order to reduce costs, blindly reduce the weight of the lamp, leading to insufficient strength ( The wind blow down) Or cooling bad, affect the service life of street lamps. And the heat dissipation of led lights. For these reasons, the led street lamp of the key components, the led chip, is has a great influence on the temperature of semiconductor devices. Too high temperature will seriously affect the service life of the LED street lamp. Some unreasonable cooling design makes the service life of street lamps by half or more. Led street lamp cursive script also includes the choice of color rendering index generally greater than 65, in order to ensure good color rendering and more real true color rendering. All in all, buy a qualified led lamp cap, must, in accordance with scientific design, not blind pursuit of low prices, and must be taken into account.