... 40-+50 degrees 4.CE,EMC,REACH,IP67 Waterproof Constant Voltage 5v Led Power Supply FEATURE:1.Wide range of output power ... type:90~110% maximum power,automatically turn into the constant current mode,restore after abnormal load removedShort circuitProtection type: ... should be deducted output voltage while low input voltage working ,static characteristic curve in detail below.5.LED Power supply be ...