1W and 0.6W, high-efficacy white lighting LEDs

March 26, 2014 // By Graham Prophet
Toshiba Electronics has added two series of white LEDs, the 3.5 x 3.5mm lens package 1W type TL1L2 series, and the 3.0 x 3.0mm flat package 0.6W type TL3GB series. Both have been developed as light sources for general lighting applications (including light bulbs, base lights, down lights and ceiling lights), street lights and floodlights.

Using gallium nitride-on-silicon (GaN-on-Si) process technology, the new white LEDs have low forward voltage (VF) and can contribute to lower power consumption and cost reductions in lighting applications.

Forward voltages are 2.85V at 350 mA (TL1L2-Series) and 5.76V at 100 mA (TL3GB-Series). Luminous efficacy for the TL1L2-Series is 135 lm/W (5000K, Ra70) at 1W operation (I f = 350 mA); for the TL3GB-Series it is 118 lm/W(5000K, Ra80) at 0.6W operation (I f = 100 mA). Colour variation of six colour temperatures is 2700K to 6500K.

Toshiba Electronics Europe; www.toshiba-components.com