E27 Corn Light Bulb Lamp
Product Name: E27 corn light bulb lamp
Product Code: HSL-CN30W
IP Rate: IP65
Power: 30 Watts
Base Holder: E40 / E39 / E26 / E27
Input Voltage: AC 85-265VAC 50/60Hz
Power Factor(PF): >0.9
LED driver: Isolated with glue protected
LED Source: SMD2835 26-28lm/led Epistar chip OR 30-34lm/led Epistar chip
Lumen Flux: 3900LM +/-3% OR 5400LM +/-3%
Lumen Efficiency: 130lm/W OR 180lm/W
CRI (Ra): >80Ra (If only Ra>70, the lamp will be more brighter)
Beam Angle: 360 degrees
Cover Type: Clear / Frosted
Color Temperature: WW, NW,PW,CW
Materials: Aluminium body + Aluminium PCB + PC cover + Fireproof PC base
E27 corn light bulb lamp
The production process steps of LED chips
A) cleaning: ultrasonic cleaning of PCB or LED support and drying.
B) rack: in LED chip (wafer) at the bottom of the electrode for silver glue after expansion, the expansion of the tube core (wafer) are placed in wafer stage, under the microscope with barbed crystal pen tube core is installed on one PCB or LED stent corresponding welding plate, subsequent sintering silver adhesive curing.
C) pressure welding: connect the electrode to the LED core with aluminum wire or gold wire welder for current injection.The LED is directly mounted on the PCB and is generally used with aluminium wire welder.(white light TOP-LED requires gold wire welder)
D) packaging: use epoxy to protect LED tube core and weld line.Glue on the PCB board and strict requirements on the shape of the adhesive after curing, which is directly related to the luminance of the finished product.The process will also take on the task of lighting a phosphor (white LED).
E) welding: if the backlight source is smd-led or other sealed LED, the LED will need to be welded to the PCB before assembling the process.
F) cutting film: various diffusion film, reflective film, etc.
G) assembly: manually install the various materials of the back light source according to the drawing requirements.
H) test: check the photoelectric parameters of the back light source and the uniformity of the light.
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