CXB3070 vs CLU048-1212 heat?

thats very interesting. so where did the other watts go? im assuming the ballast was inside the tent too?
 
The heater converts all electricity to get though right? The hps uses 20% or so for light? Which is why it's less?
 
nxsov180db said:
It actually was not inside the tent but why would that matter? I understand the ballast has a certain efficiency and creates heat due to losses but we are essentially comparing a 500 watt heater to a 600 watt light. Only reason it was not inside the tent was because it was already mounted on the wall next to it..
Click to expand...
because that is skewing your wall measurement. where you are measuring 618W at the wall could be 460W in the tent if it was an inefficient magnetic ballast at 75% efficiency
 
ok well that electronic is prob 85-90% which would skew a little. so your 618 is like 500-550W in the tent
 
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