Our Value
Economic Value
Efficiency and Lumen Maintenance
The ROMlight electronic ballast operates High Intensity Discharge (HID) lamps with lower energy losses and superior lumen maintenance than magnetic ballast technology. This means savings in the cost of light as a result of either requiring fewer fixtures in new installations or reducing the wattage per fixture in retrofit applications. Romlight ballasts operate at an impressive 97% efficiency compared with the 75% to 85% efficiency of Magnetic Ballasts. The improvement in lumen maintenance reduces excessive relamping costs.
Relamping Savings
The high frequency operation of ROMlight ballasts reduce lumen depreciation by soft starting the HID lamp, lessening electrode erosion and the resultant arc tube blackening. Superior lumen maintenance means more useful light (i.e., higher lumen output over time) at the end-of-lamp-life pushing the relamping cycle for Metal Halide Pulse Start lamps out from 12,000 Hrs to 18,000 Hrs.
|
Lumen Output (% of Initial Lumens) |
||
Hours of Operation |
Magnetic Ballast |
ROMlight Ballast |
12,000 |
64%* |
83% |
18,000 |
44% |
78%* |
 |
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|
* recommended relamping schedule |
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In a facility that operates 8,000 hrs/yr using 450 fixtures, this translates to a $93,150 reduction in maintenance costs over a 10-year period ($25 lamp + $65 labor = replacement cost). A savings of over $20/fixture/year.
Cost of Light over 10 Years – New Installations
The following example charts the comparative 10 year overall cost of ownership of a new installation.
Magnetic Ballast with 400w Probe Start Lamp |
Magnetic Ballast with 400w Pulse Start Lamp |
ROMlight Electronic Ballast with 400w Pulse Start Lamp |
|
Specifications |
|||
Number of Fixtures Required |
465 |
355 |
295 |
Mean Lumens per Lamp |
23,400 |
31,000 |
37,000 |
Input Watts per Fixture |
460 |
455 |
412 |
Purchase Costs in $US |
|||
Fixture Cost (each) |
$150 |
$200 |
$356 |
Lamp Cost / Fixture |
$15 |
$25 |
$25 |
Total Fixture Cost |
$69,750 |
$71,000 |
$105,020 |
Total Lamp Cost |
$6,975 |
$8,875 |
$7,375 |
Installation Materials (@ $100/Fixture) |
$46,500 |
$35,500 |
$29,500 |
Installation Labour (@ $50/Fixture) |
$23,250 |
$17,750 |
$14,750 |
Total Installed Cost |
$146,475 |
$133,125 |
$156,645 |
Savings |
|
9.1% |
-6.9% |
Annual Energy Costs 8,000 hour/year operation |
|||
Per Fixture |
$368 |
$364 |
$330 |
All Fixtures (@$0.10/KWH) |
$171,120 |
$129,220 |
$97,232 |
% Savings vs. 400w Probe Start |
|
24% |
43% |
Lamp Replacement Costs Over 10 Years in $US |
|||
Hours Operated / Year |
8,000 |
8,000 |
8,000 |
Lamp Replaced @ (hours) |
12,000 |
14,000 |
18,000 |
Replace & Clean @ $65/Fixture + Lamp |
$223,200 |
$159,750 |
$106,200 |
% Savings vs. 400w Probe Start |
|
28% |
52% |
10 Year Cost of Ownership in $US |
|||
Energy Costs @ $0.10/KWH + 3% Increase/Annum |
$1,962,610 |
$1,482,051 |
$1,115,174 |
Total Cost including Energy Cost Increases |
$2,332,285 |
$1,774,926 |
$1,378,019 |
% Savings vs. 400w Probe Start |
|
24% |
41% |
$ Savings vs. 400w Probe Start |
|
$557,360 |
$954,267* |
|
* 71% savings over magnetic ballast with pulse start lamp |
||
Using a Romlight ballast instead of a magnetic ballast with a 400-watt pulse start lamp results in a 71% savings.
Dimming or occupancy sensors and light harvesting option not included in the example. Use of these energy conservation techniques would increase operating savings substantially.
Cost of Light Over 10 years – Retrofit
Magnetic Ballast with 400w Probe Start Lamp |
Magnetic Ballast with 350w Pulse Start Lamp |
ROMlight Electronic Ballast with 320w Pulse Start Lamp |
|
Specifications |
|||
Number of Fixtures Required |
400 |
400 |
400 |
Mean Lumens per Lamp |
23,400 |
27,800 |
26,700 |
Input Watts per Fixture |
460 |
405 |
330 |
Purchase Costs in $US |
|||
Fixture Cost (each) |
$150 |
$200 |
$356 |
Lamp Cost / Fixture |
$15 |
$25 |
$25 |
Total Fixture Cost |
$60,000 |
$80,000 |
$142,400 |
Total Lamp Cost |
$6,000 |
$10,000 |
$10,000 |
Installation Materials (@ $100/Fixture) |
$40,000 |
$40,000 |
$40,000 |
Installation Labour (@ $50/Fixture) |
$20,000 |
$20,000 |
$20,000 |
Total Installed Cost |
$126,000 |
$150,000 |
$212,400 |
Annual Energy Costs 8,000 hour/year operation |
|||
Per Fixture |
$368 |
$324 |
$264 |
All Fixtures (@$0.10/KWH) |
$147,200 |
$129,600 |
$105,600 |
% Savings vs. 400w Probe Start |
|
12% |
28% |
Lamp Replacement Costs Over 10 Years in $US |
|||
Hours Operated / Year |
8,000 |
8,000 |
8,000 |
Lamp Replaced @ (hours) |
12,000 |
14,000 |
18,000 |
Replace & Clean @ $65/Fixture + Lamp |
$192,000 |
$180,000 |
$144,000 |
% Savings vs. 400w Probe Start |
|
6% |
25% |
10 Year Cost of Ownership in $US |
|||
Energy Costs @ $0.10/KWH + 3% Increase/Annum |
$1,688,267 |
$1,486,409 |
$1,211,148 |
Total Cost including Energy Cost Increases |
$2,006,267 |
$1,816,409 |
$1,567,548 |
% Savings vs. 400w Probe Start |
|
9% |
22% |
$ Savings vs. 400w Probe Start |
|
$189,858 |
$438,719* |
|
* 131% savings over magnetic ballast with pulse start lamp |
||
Dimming or occupancy sensors and light harvesting option not included in the example. Use of these energy conservation techniques would increase operating savings substantially.
Savings vs. Fluorescent Fixtures
To generate the same lumen output as one 400-watt pulse start metal halide lamp, a fluorescent fixture would require 8.5 lamps at 35C. The ROMlight electronic ballast operating HID lamps supply more lumens per watt at normal ambient operating temperatures and huge savings in lamp replacement costs.
Additional Value Features
Light Weight system
Less expensive installation labour and hardware.
Quite Operation
No audible hum or buzz.
Cool Operation
The exceptional efficiency of the ROMlight electronic ballast generates significantly less heat then magnetic ballasts reducing air conditioning load.
Environmental
Extending useful lamp life through lumen maintenance and requiring fewer lamps to generate the same light as other forms of lighting reduces the impact of lighting waste on our landfills. Using less electricity reduces air pollution.
Comprehensive Warranty
ROMlight electronic HID ballasts are warranted for a full 3 years.