High-voltage LEDs suitable for retrofit lamps

Everlight's new Hivo series comprises a 1, 2 and 4W solution.

The single-chip LED provides a luminous flux of 80/100lm at 48-55V DC in a colour temperature of 3,000/5,700K.

The 2W product with two LED chips connected in series achieves 140lm for 2,700K at 95-111V DC.

The four-chip LED with 275/375lm for 3,000/5,700K is available for voltages of 95-111V in the US and Asia, and 190-220V DC in Europe.

All Hivo components are supplied in a ceramic package with dimensions of 3.5 x 3.5mm for the 1W and 6 x 6mm for the 2 and 4W.

The closer the Hivo LED's voltage is to mains RMS voltage, the fewer the components needed in the driver solution.

Because the Hivo LED's voltage closely matches the mains RMS voltage, the need for a converter in the driver solution is completely negated.

When Everlight's new Hivo LEDs are implemented into an LED integral lamp, the full driver solution is no longer needed.

Only a bridge rectifier, resistor and capacitor are needed for very basic operation, resulting in higher overall efficiency of and a decrease in bill-of-material costs for the LED integral lamp.

With saved space, more heat sinking can be added.

The omission of more fragile driver components and an improved thermal performance of Everlight's new Hivo LEDs, due to their ceramic packaging, result in better LED lifetime.

Added space also allows the Hivo LEDs to be easily implemented into very small bulb applications such as candelabras, mr11s or some mr16s where traditional LEDs plus drivers would not fit.