Philips, which pioneered reliable high-efficacy triphosphor TL-D fluorescent lamps with low lumen depreciation, announces the launch of two new cost-saving lamps, Master TL-D Xtra and Master TL-D Xtreme.
These two lamps are based on a new technology developed by Philips, which significantly limits early failures. Therefore their lifetime reliability outperforms any other TL-D lamp in their category. Master TL-D Xtra and Xtreme can directly replace TL-D lamps in existing installations to effect further considerable reduction in the cost of lighting ownership without affecting light technical performance. These lamps should be used for those application areas where maintenance costs are high and/or when one is confronted with disruptive costs due to light maintenance eg. like maintenance in tunnels or over industrial processes.
On conventional electromagnetic control gear, new Master TL-D Xtra has a survival rate of 95 per cent after 19,000 hours burning. Master TL-D Xtreme has the same survival rate after no less than 33,000 hours. The 80 per cent service lives are 21,000 and 36,000 hours respectively whereas the existing Master TL-D/80 has a service life of 12,000 hours. In this service life a drop in luminous flux of less than 10 per cent is incorporated.
In practice, these incredibly long service lives mean that a Master TL-D Xtra lamp, burning throughout the hours of darkness 365 days a year, would only need replacing after six years service.
The true cost of lighting ownership, calculated by amortising capital, installation, re-lamping maintenance and energy costs over the life of an installation, is of far greater significance than first cost alone.
Master TL-D Xtra and Master TL-D Xtreme lamps are currently available in 18W, 36W and 58W ratings, in the triphosphor colours 830 (warm white) and 840 (neutral white).