F2 led headlight was launched on September 2017. it is a high performance led headlight with fan, the double beam led bulb are designed with 4 CR CSP led chips while single beam led bulb has 2 pcs of CR CSP LEDs. The maximum light output of F2 led bulb can reach 6000 lumens.
The F2 bulb is housing one PCB board in middle with opposing LEDs on two sides that decrease the distance between two side LEDs. With this special design, it can make the thickness of light source close to the tungsten filament of the halogen bulb.
The F2 headlight using a small size fan is easy to install which would not influence to mount the dust cover. The bulb of F2 used 6003 Aluminium alloy with a decent surface treatment that creates a good texture for the bulb. Its operating power can up to 36W which will have a better canbus performance than the common 25W led headlight.
Next, we test the F2 led headlight performance, the reviews are shown as below:
Testing the led bulb with 13.5 volt power supplied for 30 minutes and the room temperature is about 24-25 degrees, the led bulb surface temperature is as below:
The temperature of led bulb at the beginning | The temperature of led bulb after 30 minutes
The temperature of heat sink at the beginning | The temperature of heat sink after 30 minutes
The operating temperature of led chips keep at about 110 degrees, the junction temperature of CSP LED is 145 degrees, the operating temperature of this bulb is set in a reasonable range.
We test in 4 meters from the wall. And take the photo by SLR camera in setting ISO: 100, Shutter Speed: 10, Exposure: 10. Get the beam pattern image as below.
Install F2-h4 led headlights in factory Koito headlight housing,
Halogen H4 low beam | F2 H4 low beam
Halogen h4 high beam | F2 h4 high beam
F2-H4 installed with a reflector, its brightness of the center can reach 4000 LUX while the maximum center brightness of halogen is 1800 LUX.
Install F2-H7 led headlight in factory VW Golf 6 headlight housing.
Halogen H7 | F2 H7
F2-H7 installed with a reflector, its brightness of the center can reach 2750 LUX while the maximum center brightness of halogen is 1850 LUX.
Install F2- H7 Led headlight in factory h7 projector headlight housing
Halogen H7 projector | F2 H7 projector
F2-H7 installed with a projector, its brightness of the center can reach 1590 LUX while the maximum center brightness of halogen is 960 LUX.
The brightness of F2 headlight would be out of your expectation if you are chasing for a higher brightness and a convenience installation, this series product without dark spot has a flat cut-off line and good light distribution is suitable for your replacement.