YUANNENGJI Podívejte se na materiál krytu LED solárního pouličního světla. Die-cast aluminum is the best because aluminum has the best heat dissipation performance and is thicker. The aluminum shell is also OK and the price is more advantageous. Look carefully at the lamp beads to see if there is a lens. The light-emitting effect of the lens is better. Look carefully at the heat dissipation structure of the entire lamp head. Generally, the lamp beads are welded on the aluminum substrate, and thermal grease is used in the middle; secondary heat dissipation: the attachment surface of the aluminum substrate is an aluminum plate; the tertiary heat dissipation is an aluminum profile.
Look at the shell, lens, atd., to see its light frequency, and then see whether the light brightness of the lamp is bright; if it looks a little dirty, then it is very likely that the quality of the lamp is problematic. If it is a solar street light, it also depends on the quality of the battery; generally, a good battery can continue to supply power for a week after being fully charged. Samozřejmě, this time is not fixed. The power supply time in winter may be relatively shorter, after all, the sunshine time may not be long.
Look at the chromaticity of the lamp. Generally, the chromaticity of LEDs with high output power will be much brighter than that of LEDs with low power, and the price will also be much more expensive.
Look at the anti-static ability of the lamp: LEDs with strong anti-static ability have a long life. Understand the current of the lamp: LED is a unilateral conductive light-emitting body. If there is a reverse current, it is called leakage. LEDs with large leakage have a short cycle and are relatively cheap.
When purchasing, first look at the shell and lens of the lamp head to feel its luminous frequency. Secondly, when the lamp head is on, see if its luminous intensity is bright. If the lamp head looks gray and feels a little dirty, it means that the quality of the lamp head is not good.
It also depends on the battery condition of the lamp head. Generally, the battery can meet the power supply for a week. If the power supply time is short, it also means that the quality of the lamp head is not good, which will greatly reduce the service life of the LED solar street light. Ordinary solar street lamp heads do not include batteries and controllers. The price of this type of lamp head is determined by power. The ordinary power is between 10w-60w, and the price ranges from 100 yuan to 500 yuan. The price of solar street lamp head, which includes batteries and photovoltaic panels, is thousands of yuan. To understand the parts, there are many specific types of parts, mainly solar panels, solar cells, solar panels, light sources, atd., so when choosing solar panels, you should also consider the material, color cast, current, open circuit voltage, conversion effect and other factors of the light panel. Samozřejmě, when making a good choice, you should also understand the detailed matching situation.
Many manufacturers’ products are not so reliable when used as lighting fixtures. The main reason is that there are corresponding problems in matching. Matching function is one of the most important goals, so it is very important to understand the corresponding matching function.