Cost Savings Comparison, 100 Watt Tanning, Electronic Ballast vs. Choke
34 42 52
  34 Lamp Bed (100w) 42 Lamp Bed (100w) 52 Lamp Bed (100w)
  Choke Electronics Choke Electronics Choke Electronics
Relative UV output@ 230 volts 95% 99% 95% 99% 95% 99%
Input Power per Lamp 126 84 126 84 126 84
System Power (Watts) 4284 2856 5292 3528 6552 4368
Line Current (Amps) @ 230 volts 22.41 11.95 27.68 14.76 34.27 18.28
BTU savings   4875   6022   7456
Energy Savings (Watts)   1428   1764   2184
Annual Energy Savings due to reduced electrical consumption@ $.12/KWH,  6 hours/day, 6 days/week, 50 weeks/year   $308.45   $381.02   $471.74
Annual thermal savings due to reduced HVAC    $308.45   $381.02   $471.74
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   $916.90   $1,062.05   $1,243.49
3 year savings   $2,450.69   $2,886.14   $3,430.46
5 year savings   $3,984.48   $4,710.24   $5,617.44
1 Ton Refrigeration = 12,000 BTU/HR
1 KW = 3414 BTU/HR
1 HP = 746 W