They create light by passing electricity between electrodes in an arc inside the bulb.
High pressure sodium lamp led.
Now led s have changed the game as an led bulb the uses 15 watts is no way similar to a 15 watts incandescent nbsp nowadays companies rate bulbs through lumens as these give you a more accurate indication of how much light to expect from an led metal halide high pressure sodium to led wattages conversionoriginal lampled lamp70 watt metal.
High pressure sodium lights are a type of high intensity discharge bulb hid.
In fact they re roughly as efficient as leds in terms of their light output for each watt of energy used.
High pressure sodium vapor hps lights similar to lps lights are a specific type of gas discharge light also known as a high intensity discharge hid or arc light.
Woods l1730 cci modern high pressure sodium security farm light powder coated housing 1 ed17 lamp 120 v 75 w 70 watt 3 4 out of 5 stars 13 62 94 62.
Indeed high pressure sodium hps lights are generally unmatched in terms of energy efficiency.
400 watt high pressure sodium replacement 120w led corn bulb mogul e39 base retrofit flood fixture commercial security light 5000k daylight parking lot street lights 4 7 out of 5 stars 5 super bright 54w led corn light bulb e39 e40 large mogul base 6500k daylight white 400 watt equivalent for indoor outdoor large area lighting garage.
Hps vs led cri.
However there is exactly one other type of lighting that beats hps in that category and that is light emitting diode led.
In fact led bulbs use between 40 75 less electricity than a hps fixture.
Led lights have a wider variety of color temperatures along with higher cris.
The popularity of that technology is not just due to its energy efficiency.
Hps light costs differ based on the particular fixtures but are cheap compared to leds.
They lose roughly 15 of their heat emissions which adds to their inefficiency.
They provide an intense light which is used in various commercial and industrial settings.
Led area lights have a much easier immanence than high pressure sodium lights.
Hps vs led energy savings.
High pressure sodium fixtures are not as energy efficiency as leds.
While upgrading to led provides a lot of benefits high pressure sodium hps lamps still provide some of the most efficient lighting available.
Like metal halides high pressure sodium lights are omnidirectional which wastes light and makes them less efficient.
High pressure sodium bulbs lamps are an old standby for lighting that s still used today in spite of so much talk of led lights.