I need a UPS that will power a printer at idle (published load of 2.5W at 120VAC) for at least 8 hours, if practical.
I'm having trouble finding reliable information as to UPS's behavior at low loads. The ones I've tested shut down after a period and I'm suspecting they shut down due to the load being too small to keep the UPS engaged.
I considered setting up a load bank using C7 bulbs (Christmas lights) but the smallest commonly available bulb is 4 watts.
Is there a practical (not too costly or too time-consuming) way to build a load bank to simulate a load in 0.5 or 1.0 watt increments? Or any alternative to achieve the same?
Any suggestions would be appreciated.
I'm having trouble finding reliable information as to UPS's behavior at low loads. The ones I've tested shut down after a period and I'm suspecting they shut down due to the load being too small to keep the UPS engaged.
I considered setting up a load bank using C7 bulbs (Christmas lights) but the smallest commonly available bulb is 4 watts.
Is there a practical (not too costly or too time-consuming) way to build a load bank to simulate a load in 0.5 or 1.0 watt increments? Or any alternative to achieve the same?
Any suggestions would be appreciated.