Main part of the LED bulb is: driver, chip, chip baseplate, radiator, PC cover, PBT shell, base.
1 LED Driver
Mainly divides into: RC driver and IC driver
RC driven voltage fluctuation range is very narrow, the voltage is not stable, easy to burn.
New light source can be used low voltage in the range of 100 v – 130 v, high voltage
range of 220-240 – v. voltage too high will burn and too low will darken, flicker.
But the IC driver accept 10% voltage fluctuation range, usually can use low voltage in the
range of 90-160 v, high voltage range of 160-260 v, no flicker.
2 LED Chip
Mainly divides into: 2835 and 5730 chip
2835 chip, is refers to the size (length) x 2.8 3.5 (width) x 0.8 mm (thickness) of the LED
0.5 W per pcs.
chip, generally 3 W LED bulb 2835 chip, power of 0.2 W per pcs, 9 W, 12 W LED bulb is
chip, generally 5 W, 7 W LED bulb every 5730 chip, power 0.5 W.
5730 chip, is refers to the size (length) x 3.0 5.7 (width) x 0.8 mm (thickness) of the LED
performance is better, 2835 has become the bulb, the ball bubble lights, panel lights, and
When compare with 730 chip, 2835’s heat dissipation and other comprehensive
other designated choice of lamps and lanterns of LED chip in the LED industry.
3 LED Chip baseplate
Mainly divides into: Glass fiber plate and aluminum plate
Glass fiber board: using glass fiber cloth, low cost, high pressure resistance, but poor
heat dissipation.
Aluminum plate: with a special kind of metal base copper-clad r.p. panel and heat
higher.
conduction performance is good, electric insulation performance is poorer, the cost is
High-grade LED bulb will adopt high quality aluminum plate.
4 LED Radiator
The radiator is the aluminum cover
LED bulb adopts aluminum plastic package, fully combined with plastic insulation,
corrosion resistance and the characteristics of metal aluminum heat fast, coupled with
the unique structure of air convection, makes heat dissipation quickly and ensure life,
reduce light decrease.
5 LED Bulb cover
milky white, transparent cover are the mainly two kinds cover in the market, the material
are PC, glass, ceramic, silica gel.
soft light, and is also most expensive.
Nowadays, LED bulb PC cover is the best, transmission of light is 85 ~ 90%, uniform and
6 LED PBT shell
Generally adopts insulation of PBT shell and has the very good
insulation and corrosion resistance.
7 LED Base
LED bulb can replace ordinary incandescent lamp, conventional lamp holder E27, E14,
also can implement tailored for different countries standard lamp holder.