20 OHM 100 WATT RESISTOR

Exactly what I needed!

I needed a resistor combination that would heat an 82 lb battery via a 1/4" aluminum plate - LiFePO4 batteries won't charge below 5 degrees C. Two of these in parallel running off the 22V solar cells makes about 45 watts of heat and works a charm! These are VERY flat on one side, so with a little heatsink compound they are wonderful!