Description
Zopoise LED T8 Tube stock on sale.
ZPS-T*****6W.F*1(Economical version) / ZPS-T*****6W(Standard
Version)
please contact for more details.
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.
- 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.
- 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.
- 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.
- 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.
- 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.
