HPS vs. LED Lighting: Which is More Efficient?
Being the successor to incandescent lightbulbs, Compact Fluorescent Lamps (CFLs) were once the wave of the future. Now, Light Emitting Diode (LED) lamps are replacing the more common High Pressure Sodium (HPS) lights.
Knowing the difference between these types of lighting is crucial if you are looking to save money over a long period of time. LED Lighting is quoted to burn approximately five times longer than HPS bulbs, which means less replacement and labor costs. The Portland Bureau of Transportation converted more than 20,000 street lights to LEDs; the city council expects to save $1.5 million annually in maintenance costs alone.
Not only do LEDs reduce costs, they provide better light quality – closely mimicking daylight – than the dim, yellow-orange HPS bulbs. On the surface, lighting quality may seem superficial, but nighttime workers will notice a difference. Hazardous situations and crime are less likely to occur with full-spectrum lighting. Read more about light quality’s effect on crime, here (link blog post “Cleaner Streets Lead to Less Crime”).
LED Lighting emits light in a hemispherical direction providing more focused light where it is needed. Typical streetlamps don’t require the full spherical direction of a bulb, as a portion of light is blocked by a cover or base. Additionally, LEDs have an “instant-on” function which allows the bulb to turn on in a matter of seconds, rather than several minutes to warm up.
Let Brandon Industries help brighten your community by replacing streetlamps that have HPS bulbs with LEDs. Download our free catalog for more information.
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