Is the brightness of solar street lights related to the number of lamp beads?

The unit that really measures brightness is the lumen. The brightness of the whole lamp depends on the luminous flux.

Lumen refers to the measurement of the output light of the lamp, which is used for the brightness of the indicator light. Wattage refers to the energy consumed by a lamp in a certain period of time. When it comes to brightness, it's more important to look at a fixture's lumen rating than wattage.

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It is also a 15W LED light source. The luminous efficiency of brand A light source is 80Lm/W, while the luminous efficiency of brand B light source is 200Lm/W. The comparison of luminous flux is: At this time, we will find that although the two have the same wattage, the LED light source of brand B is brighter . Going deeper, the 14w luminous flux (2*15W*80Lm/W)=2400Lm of the two LED light sources of brand A is still no brighter than a single 15w LED light source of brand B.

The quality of lamp beads depends on the raw materials. This is the so-called "you get what you pay for". Taobao and Pinduoduo buy so-called 50W and 100W for tens of dollars. You can just buy a firefly toy and go home. It is only about 5W-10W, don't expect it to be very bright.

There are also some merchants who deliberately set the lights to the "blinding" mode some time ago for the sake of gimmicks. However, the remaining power is limited and cannot support the rest of the long night. It also turns off the lights when it gets dark.

There was once a customer who bought led solar street light densely packed with lamp beads at a very high price-performance ratio. In his own words, he never saw these lamp beads light up at the same time.

The formation of a brand is the result of product selection by the market, and the accumulated and precipitated public word-of-mouth finally forms the brand image. Haiyan Lighting has established a brand in the solar street lamp industry from the very beginning, and in terms of optical technology, it proposed the use of high-efficiency brand lamp beads early on. Its strong brand power and product stability have been recognized by the industry and customers until today.

The cost price of a high-efficiency branded solar street lamp LED lamp bead is about a few cents, while those cheap low-efficiency lamp beads of the same size cost less than a penny. The price gap of nearly ten times is completely reflected in the use experience and the life of the whole lamp. Moreover, the brightness of hundreds of low-priced lamp beads piled up may not be as bright as high-cost lamp beads. To put it simply, the merchants who make up lamp beads are fooling customers. In essence, they are basically workshop enterprises that make up together.

Therefore, it is necessary to rationally choose a solar lamp that "lights from now on without spending money". Don't pay for the stupid number of lamp beads, and don't pay for the eye-catching virtual standard power.