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QL: lighting technology QL uses a technology in which high-frequen- Mains voltage fluctuations have no effect cy energy is induced in a low-pressure mer- on lamp performance: light output varies cury gas by an induction coil.There are no by no more than 2% over the voltage conventional filaments or electrodes, which range 185-255V for systems rated at are the main lifetime -determining factors in 230V nominal, and 108-132V for 120V conventional lighting systems. nominal systems. The QL discharge vessel is internally coat- Lumen efficacy of QL is 70 ImM/,a per - ed with fluorescent powder in the same formancewhich is comparable to that of -rL way as aTL Iamp.The same range of colors fluorescent lamps, and over five times high - can be achieved as with TLD New er than that of conventional incandescent Generation /80 series lamps, allowing com- lamps. fortable and effective lighting conditions to be created. The minimum operating lifetime "pecta- tion of the QL system is 60,000 hours or The high frequency at which the QL induc- more, with a statistical failure rate of only tion coil operates -2.65 MHz—completely around I% per 4,000 hours. Aker 60,000 eliminates the flicker which many people find--hours-the expected mortalityrateis less -- -- - - disturbing from most other discharge lamp- than 10%,with a maximum dedinein light types. Starting perfonnance of QL is virtual- output of no more than 30% per system. ly instantaneous both hot and cold, and the This performance is many orders of magna - light output is obtained within only 0.1 sec- tude higher than that of other lighting sys- ond. Another benefit of QL's high -frequency tems, and will offer QL users big savings in operation is the absence of stroboscopic the costs of maintenance and regular lamp effects,which makes QL safe to use in indus- replacement trial situations involving moving machinery. Q L range Lamp specifications ._............ # QL 55W QL 85W QL 165W Lumen output 3,500 6,000 12,000 Bulb 0 / length (mm) 85/140 111/180 130/210 Lamp base .......... Click Base _ ........ l Bayonet ....__.........-- Color temperature /827*, /830,/840 1830,/840 Lifetime (50% survivals) 100,000 hours _...—.. �_ *Not available in North America .............._..___....