Description

Zopoise LED T5 integrated lighting fixture on sale

ZPS-MD*****6W

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There are a lot suppliers offering different rating LED light tubes with different prices.
Actually there are real differences in the price forming. Here Id like to have brief explanation about it.

1. LED light source.  Prices differ in the types, and in the brands. The different LED light sources have distinguishing performances in brightness, heat dissipation, light uniformity, lumens depreciation, stability, life span etc.
2. Mounting methods for LED light source.  To produce a specified power light tube, manufacturers can use different types LED light sources and those will cost different times for welding/mounting.

For example, #***8 LED chip has rate power of 0.***5W driven by low current under *0mA. However, #***4 LED chip has rate power of 0.1W driven by *0mA current. If a final rated *8W light tube is needed, it will cost **8pcs #***8 chip, and the labor cost will be calculated as **8times welding/mounting. As to #***4, the corresponding data will be **0pcs and **0times.  As a result, different prices derives from this part light source and labor cost.

1. The driver. Light tube with external driver has longer life span than that with internal driver because of performance in heat dissipation. But External driver is more expensive and people need to revise the circuit when replace CFL tube. So most LED light tubes in the market are equipped with internal driver.

There are isolated & non-isolated ones when we talk about internal driver. Isolated driver has a compared security guaranteed design but a little more expensive. Some suppliers may adopt non-isolated driver to reduce the cost, but put buyers in the risk of electric shock because of its simple and rough design.
Meanwhile, the drivers price differs due to materials and manufacturing process.

1. The construct and proximate matters.   All-plastic tube was mainly adopted in early period. It has very poor performance in heat dissipation and this will easily lead to lumens depreciation. Afterwards the half-plastic-half-aluminum tube came into use. The aluminum material should have enough thickness to be qualified for heat dissipation. Some suppliers may use thin aluminum material with a lot impurities  at low cost.
2. Other aspects. Different lampshades have different light transmittance. Aluminum substrates is various. Bolts fastening is better than glue fastening. Other factors influencing the life times etc.