How long I can get back my money for retrofit 400W MH via LED high bay light?

How long I can get back my money for retrofit 400W MH via  LED high bay light?

If you using 180W LED high bay light to retrofit 400W MH traditional high bay, you can get return of invest about 9 months only.

Here is a 180W LED high bay light retrofit 400W MH comparation data sheet for reference.

Current 400W MH		TEKLED 180W LED CORN Light
Enter Your Bulb Wattage	400	Enter The LED Bulb Wattage	195
Enter Number of Bulbs	170	Enter Number of LED Bulbs	170
Enter # of Operating Hours Per Day	12	Enter # of Operating Hours Per Day	12
Total Watts Per Day	816000	Total Watts Per Day	397800
Divided by 1000(kWh)	816	Divided by 1000(kWh)	397.8
Enter # of Operating Days Per Month	26	Enter # of Operating Days Per Month	26
Total kWh Per Month	21216	Total kWh Per Month	10342.8
Enter Current kWh Cost	US$0.25	Enter Current kWh Cost	US$0.25
Per Bulb Maintenance & Ballast Per Month	0.51	LED lights no need ballast	/
Maintenance & Ballast Monthly Total	US$86.70	LED lights no need ballast	/
Cost Per Month to Operate Bulbs	US$5,390.70	Cost Per Month to Operate LED Bulbs	US$2,585.70
Cost Per Month to Operate Bulbs Plus HVAC	US$6,199.30	LED lights low heating	/
Total Annual Cost To Operate	US$74,391.66	Total Annual Cost To Operate	US$31,028.40
		Total LED Savings Annually	US$43,363.26
9*5359.70=48237.3	VS	Our lamp cost ($251.33*170PCS):	-US$42,726.00
		Only  9 Months electrical charges cover the LED lamp cost

You can directly contact with TEK Lighting Technology to get more detail information.