Trivia of automatic solar street light

1. There are two kinds of solar panels: monocrystalline silicon and polycrystalline silicon. The conversion efficiency of monocrystalline silicon is high and that of polycrystalline silicon is lower than that of monocrystalline silicon. But when it comes to power, 100W monocrystalline silicon and 100W polycrystalline silicon are a concept, but the volume of polycrystalline silicon will be larger.

2. The energy storage part of the battery is divided into traditional lead-acid gel maintenance-free batteries and lithium batteries.

Lead-acid battery, conventional battery, the life cycle is not as good as a lithium battery, at the same time, it has memory, can not discharge 100%, only 75% of the depth of discharge, now it is not recommended.

Lithium batteries can be divided into lithium iron phosphate batteries and lithium ternary batteries. Lithium iron phosphate batteries must be more expensive than lithium ternary batteries. The use is the same, and the ternary lithium battery is recommended here.

The iron lithium is not recommended, because the price of iron lithium is 1 / 3 higher than that of ternary lithium. As long as iron lithium is used as solar energy on the market, it is used to dismantle batteries, old batteries, and only by dismantling batteries, can the price and service life be guaranteed. So, when you see that iron lithium is cheaper than ternary lithium, you know that it must be used to dismantle the battery. On the top floor of Xiaobian is a large factory specialized in dismantling the lithium iron phosphate battery, which is purchased in large quantities from abroad, then disassembled and rematched, and then made into solar lamps to flow to the market.

3. Controller, different manufacturers, different quality. Big brands will also have problems, mainly depending on the mastery of the assembly plant's plan.

4. Lamp shell, this water is very big. This kind of light fixture made of small braid now has die-casting aluminum material and ABS plastic material. Different people have different opinions. Different people have different opinions. Better die casting, anti typhoon.

Schemes of automatic solar street light

1. The constant light time control scheme

The traditional scheme has always been bright. Many manufacturers are doing this article. After lighting 1~2 hours, the time is controlled to half power, then bright for a while, then changing power. This way, the perpetual lamp can be extended if the hardware index is not up to standard.

2. Human induction scheme

People come to all bright, people go 10%. In this way, the configuration is reduced, the cost is reduced, and the endurance is extended.