LED Engin based in San Jose, California USA, has launched a 4-die, high current, RGBW LED emitter with a flat lens.
The LZ4-04MDPB emitter boasts best in class flux density. The company more than doubled the output of their previous RGBW emitter with the LZ4-04MDPB. According to LED Engin, the individually addressable green, blue, and white LED die can be driven at up to 3 amps and the red die at up to 2.5 amps. The company placed these high-powered die together on the same 2.15mm x 2.15mm light emitting surface as its predecessor.
LED Engin claims that the output of the RGBW LED ranges from tungsten-effect white lighting to a full spectrum of brilliant colors. Fixtures such as wall washes, direction effect lighting, and moving heads with zoom optics can employ the RGBW LED.
The tiny emitter has a 7mm x 7mm footprint. The 4-channel, multilayer ceramic substrate of the LED cuts the thermal resistance to just 0.9 °C/W enabling rapid dissipation of up to 40 watts of power. This multilayer ceramic substrate facilitates better heat dissipation, allowing higher current to drive each die without compromising reliability or operating life.
The new RGBW emitter features a lower profile substrate and thinner flat glass lens than the previous version. The structure allows secondary optics to be closer to the surface, maximizing coupling efficiency. LED Engin says that the closer secondary optics can enable powerful illumination from fixtures with tightly controlled beam widths as low as 4 degrees. Fixture designers can reportedly adopt the same secondary lenses and optical design used with any of LED Engin’s existing flat top RGBW emitters, provided that the secondary lenses are rated for the increased temperatures resulting from the higher-power operation.
LED Engin CEO, David Tahmassebi, said, “Once again, we’ve advanced our proprietary technologies to deliver exactly what customers in these demanding lighting applications have asked us for: ever higher light output without increasing the emitter size. Most importantly, we’ve done so in a way that ensures sustained performance and long-term reliability.”
The LZ4-04MDPB emitters are now available from LED Engin and its distributors.
