Should you choose LED Low Bay or LED High Bay for factory lighting?

Deciding whether to opt for LED Low Bay or LED High Bay lighting for your facility can be a bit of a puzzle, especially for factory and warehouse managers who are still trying to figure out the difference between these two types of lights. Choosing the right lighting involves considering various factors like cost, placement, and wattage. To help you make an informed decision, we’re breaking down the key differences between LED Low Bay and LED High Bay lights, particularly for industrial settings. Let’s dive in. ### The Distinction Between Low Bay and High Bay Lighting The primary difference between low bay and high bay lights lies in their mounting height. LED low bay lights are generally installed at heights up to about 8 meters. Traditionally, low bays were those rectangular 'white boxes' commonly found in factories, while high bays were pendant-style lights designed for taller ceilings. At LED Save, we define a low bay as an un-lensed fixture with a beam angle of around 120 degrees, whereas a high bay is considered a lensed fixture that delivers a focused light pattern when mounted higher up. Essentially, the difference boils down to the height and the angle of the light beam. ### Cost Considerations for LED High Bay/Low Bay Lights Investing in energy-efficient LED lighting can offer significant returns. Our latest ultra-efficient LED low bay/high bay options promise a return on investment within just 9 months! Take a look at the comparison table below for a typical installation using the LEDSAVE Ultra-Fast ROI LED high bay/low bay series: | | **400W HID** | **150W LED** | |----------------|-----------------|------------------| | **Power (W)** | 400 | 150 | | **Number of Fittings** | 10 | 10 | | **Hours/Day** | 10 | 10 | | **Days/Week** | 5 | 5 | | **Weeks/Year** | 48 | 48 | | **Hours/Year** | 2,400 | 2,400 | ### How Much Can You Save with the New 150W LED Range? Over a 5-year warranty period, you could save £3,755.00, while over its expected lifetime, the savings reach an impressive £18,005.00! | **Component** | **400W HID** | **150W LED** | |-----------------------------|--------------|--------------| | **Electricity Cost (£/KWh)** | £0.15 | £0.15 | | **Annual Electricity Cost** | £1,440.00 | £540.00 | | **Annual Electricity Savings** | – | £900.00 | | **Cost of LED High Bay (Ex VAT)** | – | £74.50 | | **Total Cost LED High Bay (Ex VAT)** | – | £745.00 | | **Break-Even Point** | – | 9 Months! | | **Estimated Lifetime (Hrs)** | – | 50,000 | | **Lifetime Usage (Years)** | – | 21 | | **Savings Over Estimated Lifetime** | – | £18,005.00 | | **Warranty Period (Years)** | – | 5 | | **Savings Over Warranty Period** | – | £3,755.00 | *Note: Excludes the cost of relamping HID fittings.* ### What Mounting Height Qualifies for Low Bay vs. High Bay? The appropriate mounting height for low bay and high bay lights depends on multiple factors: 1. **Cost**: LED low bays are less expensive than equivalent LED high bays, so it might be more cost-effective to install more low bays to achieve the desired light levels. 2. **Mounting Height**: At heights below 7 meters, low bays are recommended to prevent issues with light spotting and poor uniformity on the ground. 3. **Wall and Floor Colors**: Light-colored walls and floors reflect more light, affecting the overall illumination. For instance, with a 150W product emitting 21,000 lumens, it's crucial to consider where the lumens will be directed. LED low bays will continue spreading light until they hit the floor or walls, absorbing most of the emitted light due to their 120-degree beam angle. The amount of absorption or reflection depends on the reflective properties of the walls and floors, which is why it's beneficial to conduct a light simulation before installation. ### When Should You Use a Low Bay? Each situation varies. For example, if you install a low bay at 12 meters in a warehouse with light-colored walls and no racks, you could achieve excellent lighting with relatively few units. However, if the warehouse has darker walls, you’d need significantly more low bay units to maintain the same lighting level, as much of the emitted light would be absorbed. In scenarios where light absorption or reflection is likely, an LED High Bay with a 60-degree lens can direct all 21,000 lumens into a smaller area on the factory floor, resulting in a much higher lux level compared to a low bay at the same height. This means fewer units would be needed to achieve the same lighting level. For racking applications, there’s also the option of using a narrow-lensed high bay, directing the light precisely down the racking aisles instead of illuminating the tops of the racks. Striking the right balance between the appropriate luminaire and the cost difference between LED Low Bay and LED High Bay is essential. A lighting simulation can demonstrate the varying lighting levels achieved with different products. ### How Many Low Bays or High Bays Do You Need, and What Wattage Should You Choose? The only foolproof way to ensure neither insufficient nor excessive lighting is by conducting a lighting simulation. At LED SAVE, we offer a FREE Relux Lighting Simulation. Simply email us with the following details: 1. Your full contact information (name, company name, project name, and phone number) 2. A drawing of the area—preferably in .dwg format or similar. If unavailable, a .pdf or hand-drawn sketch will suffice. Include the following specifics: - Dimensions of the area (length x width x proposed mounting height) - Wall, floor, and roof colors - The activities carried out in the space—this determines the required lighting level - Details of any obstructions, such as racks Feel free to browse our extensive selection of LED lights on our website. For more insights on selecting the perfect LED lighting for your space and maximizing savings, visit our blog. *Updated: January 11, 2023.*

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