Back POWERCOOL THERMAL HEADS High Power Heads: - 40C to +125C TH80: 80 watts power, Dim: 1.86 x 1.86 x 0.7 TH220: 220 watts power, Dim: 2.74 x 2.74 x 0.7 TH320: 320 watts power, Dim: 3.56 x 3.56 x 0.7 Low Temperature Heads: -55C to + 135C TH80-2: 7 watts power, Dim: 1.86 x 1.86 x 1.0 TH2...