Cost Savings Comparison, 100 Watt Tanning, Electronic Ballast vs. Magnetic Ballast
28 32 52
  28 Lamp Bed (100w) 32 Lamp Bed (100w) 52 Lamp Bed (100w)
  Magnetic Electronics Magnetic Electronics Magnetic Electronics
Relative UV output @ 120 volts 100% 102% 100% 102% 100% 102% x
Input Power per Lamp 116.9 84 116.9 84 116.9 84 x
System Power (Watts) 3273.2 2352 3740.8 2688 6078.8 4368
Line Current (Amps) @ 120 volts 29.06 18.91 33.22 21.62 53.98 35.13
BTU savings   3145   3594   5841
Energy Savings (Watts)   921.2   1052.8   1710.8
Annual Energy Savings due to reduced electrical consumption@ $.12/KWH,  6 hours/day, 6 days/week, 50 weeks/year   $198.98   $227.40   $369.53
Annual thermal savings due to reduced HVAC    $198.98   $227.40   $369.53
Annual savings due to reduced maintenance cost for Lamp & Starter replacements (one less maintenance call per year)   $150.00   $150.00   $150.00
Savings due to reduced building wiring & breaker cost, smaller HVAC.   $150.00   $150.00   $150.00
1st year savings   $697.96   $754.81   $1,039.07
3 year savings   $1,793.88   $1,964.43   $2,817.20
5 year savings   $2,889.79   $3,174.05   $4,595.33
1 Ton Refrigeration = 12,000 BTU/HR
1 KW = 3414 BTU/HR
1 HP = 746 W