Home page (News)  About vitaLED  Products  Application  Technologies  Contact us
Halogen vs. LED Spotlights Comparison
Dichroic Halogen Spotlight 
Power LED Spotlight 

Light Source 
Quartz Halogen Bulb 
Power LED 
Average Source Life 
2000 hours 
50,000 hours 
Lamp Life Expectancy 
1X 
25X 
Lamp Temperature 
250¢XC 
70¢XC 
Power Consumption 
20W (5X) 
4W (1X) 
Luminous Flux @ 1 meter 
200 Lux (using 3500K warm white) 
100 Lux (using 6500K white) 
Luminous Efficacy 
12 lumens/watt [*] 
25 lumens/watt 
Color Selection 
Single Color 
Many Color Choices 
Color Stability Over Time 
Poor 
Good 
UV or IR Radiation 
Yes 
No 
Mercury or other contaminants 
Yes 
No 
Shockproof 
No 
Yes 
Initial Product Cost 
Low 
High 
Long Term Operating Cost 
High 
Low 
Return of Investment (ROI) Calculation for LED Spotlight Systems Case Study Example:
Project name: Major ABC Retail Group Showcase Lighting
Number of chain stores:50
Number of lamps used:100 pcs per storeProposed initial lighting investment per store:
If using halogen MR16 bulbs:
(a) 20W Halogen bulbs: 100 pcs X $3.00 = $300.00
(b) 300W 120V/12V AC/AC Transformer: 10 pcs X $75 = $750.00
Total initial investment (a + b) = $1050.00
If using LED MR16 bulbs:
(a) 4 W LED bulbs: 100 pcs X $30.00 = $3000.00
(b) 300W 120V/12V AC/AC Transformer: 2 pcs X $75 = $150.00
Total initial investment (a + b) = $3150.00Initial investment cost difference = $3150  $1050 = $2100.00 extra (for choosing LED spotlight)
[Note: All pricing figures used in this illustration are based on market price assumption]Electricity Bill Calculator Formula
Monthly Bill = Number of lamps used X (Watt/1000) X (Monthly Usage Hours) X (Cost per KWH) Bill Calculation Factors (Assumed for the sake of easy calculations)
Monthly usage Hours:?30 days X number of hours (12 hours per day)
Electricity cost per KWH:?US$1.00
LED MR16 wattage:??4W
Halogen MR16 wattage:?20W
Monthly Electricity Bill Comparison 
1 Month (US$) 
1 Year (US$) 
5 Years (US$) 
Halogen MR16 Electricity Bill Calculation:
100 pcs X (20W/1000) X (30X12) X $1.00 
$720.00 
$8,640.00 
$43,200.00 
LED MR16 Electricity Bill Calculation:
100 pcs X (4W/1000) X (30X12) X $1.00 
$140.40 
$1,684.80 
$8424.00 
LED MR16 Electric Bill Savings Over halogen MR16? ($720.00 ¡V $140.40) 
$570.60 
$6,847.20 
$34,236.00 
Halogen MR16 replacement cost every 6 months
100 pcs X $3 = $300? (Therefore 1 month average = $50)
Note: Assuming each Halogen life is 2000 hours and Halogen bulb is $3.00/pc 
$50.00 
$600.00 
$3,000.00 
Total Savings 
$620.60 
$7,447.20 
$37,236.00 
Remark: The electrical bill savings will pay for the initial LED bulb investments itself in less than 6 months.Accumulated Cost Savings for LED spotlight system (Possible cost savings for installation period of 5 years)
Number of Chain Stores 
Total Amount of Savings (in US$) 
10 stores 
$370,236.00 
25 stores 
$930,900.00 
50 stores 
$1,861,800.00 
100 stores 
$3,723,600.00 