LED Grow Lights Greenhouse Cost

Electricity Costs- Example: 6' x 90' Plot. Power drop to each LGM550.
Note each 1000 watt bulb is calculated for 1100 watts to account for electricity consumed by ballast.

LED Grow Lights- Cost in the Greenhouse

Watts

Hours Per Day

Days Per Year

Watt Hours
Per Year

KW Hours Per
Year

Cost Per KW
Hour

Cost Per Year

80
LGM550

720

150

1,512,000

1,512

.10

$151

9
1000 Watt HPS

9,900

150

20,790,000

20,790

.10

$2,079

LED lighting may be used 365 days a year because of the low energy and minimal heat output of the product. For
the sake of the comparison to HPS we have chosen to calculate the cost of supplemental lighting for October
through March as this is a general suggested supplemental lighting time frame for traditional technology.

LED Assumptions-
Lifetime: LED Grow Master grow lights are rated for 100,000 hours. Utilizing a 14 hour photoperiod, LGM lighting
is estimated for a 19 year lifetime.

Initial Cost: (assuming no bulk discount is provided): 80 pieces LGM550= $23,200 USD

HPS Assumptions-
Lifetime: HPS bulbs will keep your plants productive only as long as the light intensity remains strong. HPS bulbs
are generally replaced after 12 months of use if the bulb is used for 12 hours or more a day. Ballasts are
calculated for a 6 year lifetime.

Initial Cost:(assuming no bulk discount is provided): 9 pieces 1000 watt HPS bulb, digital ballast, reflector=$5,297
USD

Bulb Replacement Cost: Nine pieces 1000 watt HPS bulb $621 USD

Disposal Fees: HPS (classified as hazardous waste)= 9 bulbs= $18 USD

	Year 1	Year 2	Year 3	Year 4	Year 5	Year 6	Year 7	Year 8	Year 9	Year 10
80-LGM LEDs	$28,320	$23,351	$23,502	$23,653	$23,804	$23,955	$24,106	$24,257	$24,408	$24,559
9-1000 watt HPS	$7,376	$10,094	$12,812	$15,530	$18,248	$20,966	$28,360	$31,078	$33,796	$36,514

Cumulative Cost Comparison Over the Lifetime Of LGM LED Grow Lights
Factoring Initial Cost, Electricity, Disposal, and Replacement Costs

	Year 11	Year 12	Year 13	Year 14	Year 15	Year 16	Year 17	Year 18	Year 19
80-LGM540 LEDs	$24,710	$24,861	$25,012	$25,163	$25,314	$25,465	$25,616	$25,767	$25,918
9-1000 watt HPS	$39,232	$41,950	$49,344	$52,062	$54,780	$57,498	$60,216	$62,934	$70,328

Savings are realized prior to the 7 year mark when cooling costs are calculated.
These costs become more important as energy prices continue to rise.
The low power requirements make LED Grow Master lighting an excellent match for alternative energy sources like
wind and solar power. Utilizing alternative energy could provide additional savings.