"Solar Flare" wrote in message
...
Which question do you want answered?

The one I asked...

Which produces more heat?..C and E because they don't waste as much
energy producing visible light.

You better think again...

Which answer is correct?...None. Only C and E are the same. The rest
all waste varying amounts of energy producing visible light.

Nothing is being wasted. The energy is being transferred to the room no
matter which poroduct you wish to use.

A watt is a watt... there is no getting around that.