How To Choose LED Warehouse Lighting

Do I need a low bay or high bay LED?

Many people think they need a high bay LED, when they really need a low bay.

A high bay is a low bay with the addition of a lens.

Choosing a high bay when a low bay is required wastes money and may well give a poor spread of light.

High bays are designed for mounting heights greater than 8-12m

Low bays are designed for mounting heights of less than 8-10m

Please see here for more details on whether to choose low bay or high bay!

What power (wattage) do I need for Warehouse lighting?

The lower the wattage of your LED warehouse lighting the more you save, but too low a wattage will result in a poor light, lost productivity and possible accidents!

If you are replacing old sodium or metal halide LED warehouse lights, it’s possible to approximate the wattage required as follows:

Sodium / Metal Halide Wattage	LED Wattage (Equivalent Light output)	Energy Savings	LED Wattage(Increased Light Output)	Energy Savings
250W	100W	60%	135W	46%
400W	150W	62.5	165W*	59%

`* we can supply 165W upon request.

How many LED low bays or high bays do I need?

1. Retro fit – just replace one for one using the equivalent wattages shown in the table above.
2. Installation in new location – if you are installing lights in a new location, or if you want to try to make additional savings by knowing exactly how many lights, and the wattages required, we are happy to perform a FREE Relux Lighting Simulation.

(Relux is an advanced program that performs lighting calculations in 3D)

Please email enquiries@ledsave.co.uk with the following information:

1. Your full details (Name, company name, project name and phone number)
2. A drawing of the area – if possible in .dwg format or similar. If this isn’t possible, then a pdf or a sketch of the area would be acceptable.

Please include:

• Dimensions of the area (L x W x approximate mounting height of luminaire)
• Colour of walls, floor and ceiling/roof.
• The activity performed e.g. warehousing, office or assembly – this dictates the required lighting level.
• Details of any obstructions e.g. racking

What is Luminous Efficacy?

Sometimes (incorrectly) called luminous efficiency, Luminous efficacy is a measurement used in the lighting industry that indicates the capacity of a light source to emit visible light using a given amount of power. It’s measured as lumens out / watts in and abbreviated as lm/W.

The higher this figure the better as that means there is more of the electricity is being converted to light.

How Reliable are LED Low Bays and High Bay Warehouse Lights?

Probably the most important aspect to consider when buying LED warehouse lighting is reliability:

1. The lights are frequently used 8 + hours per day and 5 days per week, but sometimes may even be used 24 hours per day 365 days a year as is the case of the LED lighting in Amazon’s warehouses.
2. Given that warehouse lights are installed at height, and that replacing faulty LED lights is time consuming, may require the rental of expensive specialised access equipment, and can lead to warehouse downtime, it’s vital to choose a reliable supplier.

We supply both UK made LED Warehouse Lighting and imported models, but all our models only use the very best components:

1. LED chips – Osram or Lumileds (Philips)
2. LED drivers – Osram / Tridonic / MeanWell

Our low bays and high bays all come with a 5-year warranty.

BUT of course, a warranty is only any good if the company is still around to honour it!

LEDSAVE is in its 9th year of business and is financially healthy, so in the unlikely event that you need to claim under the warranty, we will be here to help!

How Much Money will LED Low Bay or High Bay Lights Save Me?

This is the most important question of course!

It will depend on all the factors above as each one has an influence on the lifetime cost and therefore savings that you will make.

It will also depend on:

1. Hours per day usage
2. Weeks per usage
3. Electricity cost
4. The cost of the LED lights

Below is an example of the savings provided by a typical LED low bay / high bay installation:

	400W HID	150W Low Bay
Power / W	400	150
Number of fittings	10	10
Hours / day	10	10
Days / week	5	5
Weeks / year	40	40
Hours / year	2,000	2,000
Electrcity cost (£ / KWh)	£0.15	£0.15
Cost electricity per year	£1,200.00	£450.00
Electricity Savings / year	–	£750.00
Cost of LED High Bay (Ex VAT)	–	£152.50
Total cost LED High Bay (Ex VAT)	–	£1,525.00
Break even point	–	2 Year(s) / 0 Month(s)
Estimated Lifetime (hrs)	–	50,000
Lifetime at estimated usage / years	–	25
Savings over estimated lifetime#	–	£17,225.00
Warranty period / years	–	5
Savings over warranty period#	–	£2,225.00
# Exluding cost of relamping HID fittings

We would be happy to perform a calculation to show you just how much you will save – please email enquiries@ledsave.co.uk