The process used to determine thermal resistance values from the LED junction-to-case and LED junction to Ts reference point. Part 1 of this article discusses measuring junction-to-case thermal resistance; determining the K-factor and testing Rth J-C (see Vector, March 2019, page 25). Thermal performance is the most critical aspect of a well-designed LED lighting system. […]
The process used to determine thermal resistance values from the LED junction to case and LED junction to Ts reference point. Thermal performance is the most critical aspect of a well-designed LED lighting system. Lighting installations with proper thermal designs have higher efficacy, meaning more light can be extracted using less energy, providing better long-term […]
RS Components has available the Lumileds Luxeon CZ optically advanced portfolio of colour and white LED emitters. This high-density portfolio offers an optimal LED solution for a range of lighting market sectors including architecture and entertainment; colour-tuneable lamps and speciality lighting for emergency vehicles. The Luxeon CZ colour portfolio includes a full spectrum of colour choices including red; red-orange; […]
An approach to enable high efficacy, high colour rendering performance LEDs. LEDs are used widely for solid state lighting (SSL). While LEDs have improved tremendously in efficacy and cost over the past decade, they must also meet end-user expectations in other aspects to expand market penetration and to realise the full energy saving potential of […]
RS Components has announced availability of high-power Luxeon ultraviolet (UV) LEDs from Philips Lumileds. Featuring the industry’s smallest footprint of just 2,2 mm², the high-power emitters are one-fifth the size of competing ultraviolet and violet LEDs currently on the market. These LEDs can be assembled in tightly packed arrays with spacing of only 0,2 mm to […]
