A 50W high pressure sodium light bulb is on the lower end of the spectrum when it comes to high pressure sodium lighting. Considering that you can find everything from 35 watts up to 1000 watts, the 50 watt bulb is not exactly the top of the power. However, this bulb is used for smaller applications such as plant growth, outdoor security lights and parking lot lighting for smaller lots that don't need a lot of output. It doesn't really matter what your intended use for high pressure sodium is because it can be a great light for many applications, no matter how big or small your needs might be. Plus, the bulbs and ballasts are affordable, allowing you to get high intensity discharge lights without having to pay top dollar in many cases.
The 50W hps light bulb is going to be a good light for plant growth and basic household or commercial lighting. While it isn't going to light an entire warehouse, it can be used in offices and other areas where more intense light is needed but the expense of fluorescent lighting isn't appreciated. With high pressure sodium lights, you will be able to enjoy output of about 100 to 150 lumens per watt, which gives you 4,000 lumens easily with the 50W high pressure sodium bulb. Everyone has different needs, so if this bulb doesn't suit your exact needs you should keep looking to find the other models of different wattage to figure out which one suits your situation best.
High pressure sodium lighting is quickly becoming one of the most popular choices for outdoor lighting. It can only be exceeded in power by low pressure sodium lamps, and is known for producing a warm white light that can offer a strong glow. They aren't as great at color rendition as metal halide lights, but do have a longer lifetime to their name. The 50W high pressure sodium lamps can be an effective choice that will give you between 16,000 and 24,000 hours of life from the time of installation and provide you with bright white light for all of your needs, no matter how big or small they might be.
In addition to becoming popular outdoor lighting options, the 50W high pressure sodium light bulb ( i.e. LU50/ECO ) and its fellow lights of varying wattage are quickly becoming a sensation in the indoor gardening and horticultural world, as well. You can find everything that you need to make your plants or your parking lot shine, as long as you are willing and able to take the time to look. High supplemental light is often helpful to many plants, and that's exactly what high pressure sodium offers. Since it is a high intensity discharge, it is able to give off more light without using a lot of power, making it a perfect lighting solution for a variety of applications. Next time you're shopping for high pressure sodium lights, take the time to find what you need because it's out there waiting.