Everlight's new HiVo series comprises a 1, 2
and 4W solution. The single chip LED provides a luminous flux of 80 / 100 lm at
48-55V dc in a color temperature of 3000 / 5700 K. The 2W product with two LED
chips connected in series achieves 140 lm for 2700 K at 95-111V dc. The 4 chip
LED with 275 / 375 lm for 3000 / 5700 K is available for voltages of 95-111V in
North America 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 6.0
x 6.0mm 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.
With saved
space, more heat sinking can be added. Both the omission of often 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 like candelabra, mr11, or some mr16's where traditional LEDs plus
drivers would not fit.
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