Led Luminaries

Cree is aiming at premium indoor and outdoor lighting with a family of metal-substrate CoBs called CMB, tuned as performance upgrades from its CXA, CXB and CMA families, while retaining mechanical and optical compatibility. “Up to 8% improvement in lumens/W vs previous generations by leveraging the latest technology platform,” is the company’s claim. They are “drop-in upgrades for Cree LED ...

Tridonic is aiming at high-ceiling industrial led lighting with a 220W harsh environment constant-current driver. ‘LCI 220/500-1400/300 pD NF h28 PRE4’ (trips off the tongue… Ed) works across -40 to +75°C and is intended to work for 100,000 hours at an ambient temperature of 65°C. It is dimmable and has an integrated DALI bus power supply for D4i luminaires. Configuration ...

Gaggione has produced a family of 45mm collimators for cob (chip-on-board) leds. VEGA45V produces a 50° beam Called Vega, they follow on from its 45mm LLC59 colimators. Like LLC59, Vega collimators will be available in PMMA plastic, but also in polycarbonate. There are eight beam options, some of them compatible with colour mixing or tunable white use. Compatibility is said to ...

Cree has shaken up its website, adding parametric search amongst other changes. “On-line interactive product search tools enable customers and users to perform a parametric search across all Cree led products,” according to the company. “This search capability is accessible on the ‘Products’ and ‘Applications’ pages, and offers filters for sorting by product type, voltage, colour and optical characteristics like ...

Led lighting certification body Zhaga has announced the first products that have met its ‘Book 24’ definition of luminaires that can be programmed over NFC (near-field communications). “Tridonic is the first company that has earned Zhaga-NFC certification for a number of their LED drivers [right],” according to Zhaga, and they can now carry the Zhaga-NFC certification logo. Book 24 application ...

GlacialPower of Taiwan has announced a 300W constant voltage led driver series that supports triac dimming. Called GP-CVM300P-xxVH , they come in 12, 24, 36 and 48V models. “At full load these new drivers provide active power factor correction of more than 0.94 at 230Vac,” according to the company. They deliver “power efficiency up to 92% and no-load power consumption ...

Cree has launched a 1.6 x 2,05mm led range with 17 colour options, plus whites. Called ‘Element G’, and also ‘XE-G’, leds, they are aimed at colour mixing applications and are said to have “nearly 3x the light output of the XQ-E and 9x the lumen density of XP-E2”, said Cree. There are nine colours emitted direct from die: violet, ...

XLamp XHP70.3 leds are the third generation of Cree’s ‘extreme high power led series’, with improved optical performance versus the previous generations, with higher intensity through optics than the second generation and with the XHP family’s highest on-axis intensity. They are optimised for outdoor and lighting applications that require large amounts of light output from small luminaires, such as in ...

The first companies have earned ‘Zhaga-NFC’ inter-operability certification for NFC readers intended to be used with suitably-enabled smart LED luminaires. NFC (‘near-field communication’) is one of several techniques being used to read data from, and changing of settings of, LED drivers in the field. Zhaga specifications are divided into ‘Books’. Book 24 and 25 define the programming of NFC-enabled luminaire ...

Three minutes of 670nm exposure in the morning appears to make the eyesight of humans over 40 years old better for a week, according to Imperial College London. The improvement is shown in cone-mediated colour contrast thresholds, tested in people from 37 to 70 years old in this research. Improvements have been seen before, using light at ~40mW/cm2, but this work ...