Traditionally Gallium Nitride (GaN) LED devices are produced on either sapphire or silicon carbide (SiC) substrates, due to the good crystal lattice matching between the materials and the GaN, with typically 2” or 4” diameter ...
LED headlights for endurance race cars has been launched by Derbyshire-based RaceTech Harnessing. They will make their debut at the 2013 Sebring 12hrs in Florida, and are being installed for the Le Mans 24 hour race. The endurance race ...
Tags: LED headlights, LED, headlights
HB (high-brightness) LEDs require a large amount of current to operate. When driving HB LEDs from a voltage source, you can set the required current with a suitable series resistor. If the voltage source is a battery, then, as the battery ...
Tags: LEDs, HB LEDs, voltage source, LED intensity
Time to Change the LED? Laser-Guided Lightmeter Will Tell You In many of the nation's traffic lights, light-emitting diodes or LEDs with their brighter light and longer life have replaced standard lamps. But knowing when to replace the ...
Tags: Laser-Guided Lightmeter, traffic lights, MoDOT, LED signals
A new piece of equipment that can measure the intensity of LEDs has been developed by Missouri University of Science and Technology. The long-standing problem many cities have regarding their traffic light bulb maintenance and the ...
Tags: LED industry
In many of the nation's traffic lights, light-emitting diodes or LEDs with their brighter light and longer life have replaced standard bulbs. But knowing when to replace the signal heads has remained a guessing game, says Dr. Suzanna Long, ...
Tags: LED light
Both Gamma Scientific and Instrument Systems have introduced low-cost CCD array spectrometers, Instrument Systems has introduced a production source and measure unit for use in production spectral light testing of LEDs and wafers, and ...
Tags: Market View, led