What is high pressure sodium light used for?
High-pressure sodium (HPS) lamps have been widely used in industrial lighting, especially in large manufacturing facilities, and are commonly used as plant grow lights. They contain mercury. They have also been widely used for outdoor area lighting, such as on roadways, parking lots, and security areas.
How much does a 400 watt light cost to run?
A 400 watt bulb really consumes more like 440 watts of total power including power supply losses, so it will use: (440 watts) x (1 KW/1000 W) x ($0.10/KWH) x (12 hours) = $0.528 a day or $192.72 a year. Substitute your utility rate and operating hours to adjust to your specific circumstances, but this will be close.
Are metal halide bulbs energy efficient?
Metal Halide lights have average efficiency (75-100 lumens/watt source efficiency). They lose out to LEDs principally because their system efficiency is much lower (<30 lumens/watt) due to all of the losses associated with omnidirectional light output and the need to redirect it to a desired area.
How many lumens is a 400 watt metal halide bulb?
Brand New HIGH OUTPUT 400 watt Metal Halide bulb is rated at 38,000 lumens! Standard MH bulbs only emit 36,000 lumens. Life expectancy is 20,000 hours. 4100 Kelvin Temp = Super Bright White Spectrum. Great for ALL STAGES of PLANT GROWTH! The Metal Halide bulb is an excellent choice for plants growing VEGETATIVELY.
What can a 400 watt metal halide grow light do for You?
Tried and true, our 400 watt metal halide is used by growers across the country. Look no further for the the best “bang for your buck” you can find from a 400 Watt Metal Halide grow light. From the #1 line of grow lights in the USA, you’ve got to see what this 400 Watt Metal Halide can do for your plants veg growth to believe it.
What are the disadvantages of metal halide light bulbs?
What is hard to cross in is that metal halides actually start out at very high efficiencies. A new metal halide bulb can get almost 100 lumens to watt. The problem is that they quickly degrade, so that the light output is half in just a few years.
What is the equivalent LED light to metal halide?
When you opt for an equivalent LED replacement, you save on your electricity bill. The standard 150 to 250 watts LED light is equivalent to 400 watts metal halide. Today, there are numerous types of LED lights on the market. Thanks to the LED lights’ high illuminance output, it is possible to retrofit and replace old HID models.