The Unicorn LED Filament brings magic and atmospheric light together. This decorative LED uses COB (Chip On Board ) technology. Dozens of micro LEDs are placed on a sturdy metal base and protected with a silicone layer. This design gives a bright glow on the front and a softer one. In addition, it also gives a warm light emission on the back. With a working voltage of only 3V, the filament is easy to use. It is smart to add a resistor to limit the current to a maximum of 100 mA. It provides an even and warm lighting that resembles the classic filament. The filament is dimmable with PWM, so you can easily adjust the light intensity. Connecting is simple: connect the cathode and anode, with the negative side marked.