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The patented LEL Multipulse system produces timed heating followed by high energy, high voltage ignition to give very reliable starting even under conditions of low temperatures.
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Twin Lamp StartingElectronic Starter for twin fluorescent tubes in series, UM3 Multipulse for twin strip lights, operating in series from one ballast and will start tubes in the twin configuration even at -30°C and with a supply voltage down to -10% (both conditions applying together). Them UM3 is also suitable for 4W to 22W single circuits on 115 to 240V supplies. Conventional CanistersBoth the UM2 and UM3 are housed in conventional starter canisters. They have an operating life equal to that of a luminaire and can be retrofitted into existing installations of factory fitted into new luminaires. Multipulse SystemLEL's patented Multipulse circuit used in the UM type starters represents a significant advance in electronic starter performance. Under normal conditions a lamp will strike, after heating, on the first pulse received and further pulses are inhibited - so the Multipulse starter provides a positive soft start typical of a single pulse starter. The Multipulse advantage becomes evident under limit conditions of low ambient temperature and low supply voltage. Where those apply the higher energy available from the Multipulse system is far more effective than a single pulse. With 2400mm Krypton lamps (100W) the higher energy Multipulse system is essential for reliable starting below +10°C, and for 1800mm slimline (70W) lamps the Multipulse starter has been shown to overcome problems encountered with ordinary electronic starters in outdoor situations. With all lamps the low temperature and low supply voltage limits are greater than those applying to single pulse types. This also means that heating times can be optimised for normal rather than extreme conditions, thereby providing a faster start. |
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UM3 Electronic Twin Starter Specification
UM3 Twin Starter Datasheet Download |
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Alternative electronic starters are the UM2 Electronic Starter and the 300C Electronic Starter |
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