ETL listed 12v 20.83A 250w LED electronic transformer
SMT-012-250VW is 12v LED electronic transformer for lighting strip. It is 12Vdc 250W power supply with 3 years warranty.
Features of 12v LED electronic transformer ：
● IP67 for indoor or outdoor installations
● Protections:Short circuit/Overload/Over temperature
● Cooling by free air convection
● 100% full load burn-in test
● Suitable for LED lighting
● Products through ETL,CE,RoHS Certification
●3 years warranty
Specification of 12v LED electronic transformer :
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SPECIFICAION
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MODEL
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SMT-012-250VW
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SMT-024-250VW
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OUTPUT
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DC VOLTAGE
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DC12V
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DC24V
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RATED CURRENT
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20.83A
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10.42A
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CURRENT RANGE
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0-20.83A
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0-10.42A
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RATED POWER
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250 W
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250W
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RIPPLE&NOISE(max)
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150mV
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150mV
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CURRENT TOLERANCE
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SETUP RISE TIME
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80ms/120VAC,220VAC
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HOLD UP TIME(Typ.)
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60ms/120VAC,220VAC
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INPUT
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VOLTAGE RANGE
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100~265VAC
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FREQUENCY RANGE
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50~60Hz
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POWER FACTOR(Typ.)
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>PF0.97@120VAC & 220VAC
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EFFICIENCY(Typ.)
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﹥89%
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AC CURRENT(Typ.)
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1.85A/120VAC,220VAC
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INRUSH CURRENT (Typ.)
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COLD START 50A/120VAC,220VAC
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PROTECTION
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Short circuit
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Protection type:recovers automatically after condition is removed
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Overload
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overload protected@145-160% above peak rating
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Over temperature
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Protection type:Shut down o/p voltage,re-power on to removed
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ENVIRONMENT
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WORKING TEMP.
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-40~+50℃ (Refer to output load derating curve)
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WORKING HUMIDITY
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20~99% RH non-condensing(Waterproof)
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STORAGE TEMP.,HUMIDITY
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-40~+80℃,10~99%RH
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SAFETY&EMC
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SAFETY STANDARDS
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ETL/cETL,CE Mark(EMC ,LVD),IP67
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WITHSTAND VOLTAGE
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I/P-O/P:1.5KVAC IP-GND:1.5KVAC
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EMC Test Standards
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EN55015:2006;EN61547:1995+2000;EN61000-3-2:2006
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EN61000-3-3:1995+A2:2005;EN61346-1:2001;EN61347-2-13:2006
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NOTE
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1.All parameters NOT specially mentoned are measured at 120~220VAC input,rated load and 25℃ of ambient temperature.
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2.Ripple&noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf&10uf parallel
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capacitor.
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3.Tolerance:includes set up tolerance,line regulation and load regulation.
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FAQ：
What is CC and CV in power supply?
"CV" stands for "constant voltage", and "CC" stands for "constant current". Most types of load need constant voltage to operate, so if the "CV" LED is lit, it means the PSU works fine with your load.
