The SPH250 series power supplies are designed specifically for use with LED applications and available with output voltage options from 12 ~ 48VDC.

These units can operate in Constant Voltage or Constant current mode and output voltage & current is fully adjustable, providing total flexibility.

Electronic protection turns off the power supplies in case of short circuit or overload, as well as open circuit or over temperature.These units are designed to be hard wired in fixed installations, or with an optional power cord, that can be connected to the input terminals with a standard AC plug, for easy installation to any GPO socket/outlet.


Model Output (V)          Output (A) Power (W)
SPH250-12A 12V 18A 250W
SPH250-15A 15V 15.4A 250W
SPH250-24A 24V 10.4A 250W
SPH250-36A 36V 7A 250W
SPH250-48A 48V 5.2A 250W


Input Voltage 90 ~ 305VAC
Frequency 47~63Hz
Input Current 1.5A @ 230VAC
Output V/A See table
Output Power 250 watts
Output Ripple & Noise 12V @ 500mV, 15V @ 600mV,
24V @ 800mV, 36 & 48V @ 1000mV
Output Current Tolerance ±5%
Line Regulation ±2%
Load Tolerance ±3%
Rise Time Typically 30ms ( max 500ms 10-90% voltage )
Hold Up Time Typically 15mS at 230V input
Power Factor > 0.95
Efficiency Model Dependent  92 ~ 94%
Inrush Current Cold start 45A @ 230V
Leakage Current 0.75mA @ 230V 50Hz
Over Current 1.1 ~ 1.6% times rated current. ( Auto Recovery )
Short Circuit Hiccup mode with auto recovery
Overvoltage Yes. Recycle input power after approx 30sec
Over Temperature Recycle input power after unit has cooled off
Operating Temp. -40ºC ~ +70ºC  ( 80% load at +70ºC )
Humidity 5~95% RH
Temp Coefficient ±0.05% per ºC
IP Rating IP65 ( IP66 option)
Cooling Free air convection
Connections Input & Output flying leads
Input Power Cord & Plug – Option
Safety EN61347-1, EN61347-2-13
Isolation Voltage Input – Output: 5.3KV DC 1min.
EMC EN55015 Class B
Immunity EN61000-4-2
Harmonics EN6100-3-2
MTBF 225Khrs per MIL-HDBK-217F ( 25º C )
Mechanical 250 x 74 x 38mm  1.26kg
SP-300 Single Phase Programmable AC Power Supply