1—Does the LED flexible filament need a heat sink?
Answer: The LED filament does not need a radiator, and the LED uses current ≤10mA, and does not require heat dissipation.

2—Can the LED flexible filament be lighted up with 18650 battery DC3.7V?
Answer: No, our LED filament voltage is standard DC3V.
If you use DC3.7V, the voltage is too high and the filament temperature is very high, which will burn out the lamp beads.

3—Where is the LED flexible filament used?
Answer: Generally used in light bulbs, DIY hand-made toys, DIY decoration design.

4—Can the flexible LED filament be 90 degrees vertical?
Answer: No. Maximum bending angle of LED filament≥30°

5—Can the flexible LED filament be freely cut to length?
Answer: No. If it is cut, it will not light up.

6—Can the length of the LED flexible filament be customized according to customer requirements?
Answer: No. All are fixed length, unless customized in large quantities (≥10,000 pieces)

7—Can LED flexible filament work in water?
Answer: No. But you can DIY by yourself and put a transparent plastic tube on the outside of the LED filament, and it can work in water.