A good quotation for industrial LED lighting contains at least the technical specifications of the luminaires, a lighting calculation, an overview of all project components, warranty conditions, and a clear price structure. Without these elements, a quotation is incomparable and incomplete. In this article, we go through the most frequently asked questions about what an industrial lighting project quotation should truly contain.
What technical specifications should be included in a quotation?
Technical details are the backbone of any serious quotation. For each luminaire, you want to see at least the following data: the light output in lumens, the power in watts, the light color in Kelvin, the IP and IK ratings, the operating temperature, and the certification level. Without this information, it is simply impossible to assess whether the lighting is suitable for the intended environment.
The environmental context determines which specifications carry the most weight. Do you work in an environment with dust, moisture, or mechanical stress? Then the IP and IK ratings decisive. Is it a location with aggressive chemicals or sea air? Then the quotation must also contain information about the materials used and surface treatments.
In addition, the following specifications are relevant for a complete technical assessment:
- Luminous efficacy (lumens per watt)
- Color rendering index (CRI or Ra value)
- Light color and color temperature in Kelvin
- Maximum and minimum operating temperature
- Certifications such as ATEX, CE, or specific industry standards
- Dimmability options and compatibility with existing installations
A supplier that does not standardly state this information sends a clear signal about the transparency of its offering.
Compare quotes from different lighting suppliers
Comparing only makes sense if quotations contain the same units, specifications, and project components. Always look at the total light output per zone, not the number of fixtures or the specified wattage. A lower price per fixture can ultimately result in more fixtures or a lower lighting quality.
Good to know: a fixed comparison structure saves a lot of time and prevents you from comparing apples to oranges. Ask yourself the following questions for every quote:
- Are the lumen values and luminous efficacy per luminaire stated?
- Is a lighting calculation or simulation included?
- What warranty period and service conditions apply?
- Are installation costs, engineering, and commissioning included?
- Which standards and certifications apply?
Also pay attention to the lifespan claims. A luminaire with a longer warranty and a higher L70 value - the point at which the luminous flux drops to 70% of its initial value - is more cost-effective in the long run, even if the purchase price is higher. Always evaluate the options based on the total cost of ownership over the expected lifespan.
What does a quotation say about lifespan and warranty?
Warranty terms deserve more attention than they often receive. A reliable quotation explicitly states the expected lifespan in burning hours, the L70 value, and the warranty period including the conditions. A five-year warranty without further specifications says little; a warranty with clear replacement or repair obligations says much more.
In industry, luminaires are often used in 24/7 operations, in hard-to-reach locations, or in environments subject to extreme stress. Maintenance costs and the risk of downtime directly impact business operations in such contexts. A quote that says nothing about what happens in the event of a failure leaves a crucial question unanswered.
When in doubt, explicitly ask for the following warranty information:
- Does the warranty apply to the entire luminaire or only to specific components?
- Who bears the costs of disassembly and reinstallation in the event of warranty claims?
- What is the response time for malfunctions or defects?
- Is a replacement fixture available during repair?
Must a lighting calculation be part of the quotation?
Short answer: yes, always. For industrial lighting projects, a lighting calculation or lighting simulation is not a luxury, but a requirement. Without a calculation, there is no objective basis to assess whether the proposed lighting meets the lighting requirements for the respective work zone or site.
An professional lighting advice results in a simulation based on the actual floor plan, the desired illuminance in lux, the mounting height, and the reflection values of the environment. This gives you insight into the light distribution, any dark areas, and the required number and positions of fixtures.
A quotation without a lighting calculation is a price quote without substantiation. In that case, you do not know whether the system will meet the standards for workplace lighting, safety, or specific sector requirements in practice.
Which project components are often forgotten?
Quotes regularly omit components that actually incur costs in practice. The most commonly forgotten items are foundations and light poles, cabling and control cabinets, engineering and permit processes, commissioning and testing procedures, and post-completion maintenance costs.
This leads to surprises on the final bill and makes quotes difficult to compare. A complete quote for a site lighting project or an installation in the Ports and terminals covers the entire process, from design to after-sales service.
Other items that are regularly missing:
- Costs for removing the existing lighting
- Modifications to the electrical infrastructure
- Documentation and as-built drawings after installation
- Training of maintenance personnel
- Potential subsidies or tax benefits such as the energy investment allowance
When is a quotation truly complete?
A quote is only complete when you can fully assess, compare, and execute it based on the information provided - without any additional questions. That means: complete technical specifications, a substantiated lighting calculation, a transparent price breakdown per project component, clear warranty conditions, and a description of the installation process.
A complete quotation gives technical decision-makers and project managers the assurance that the system will meet the specified requirements upon delivery, within the agreed budget and schedule. If any of these elements are missing, the quotation is by definition incomplete and you, as the client, bear unnecessary risk.
Use this checklist as a guide when evaluating each quotation you receive for an industrial lighting project.
Case Study: DFDS Terminal Lighting
What a complete quotation and thorough preparation mean in practice becomes clearly visible in the project for DFDS. For this terminal operator, the central challenge revolved around continuity: the terminal operates day and night, which means lighting cannot simply be switched off for maintenance or replacement. That operational constraint guided every design choice.
Technically, the fixtures had to be resistant to marine air and the associated corrosive environment, while at the same time delivering sufficient light output for safe loading and unloading operations. The choice of fixtures with a high IP rating and corrosion-resistant housing was therefore not a standard decision, but the direct result of a detailed preliminary environmental analysis.
What this project also taught: a lighting calculation based on the actual floor plan and mounting heights prevented dark zones in critical workspaces. The positioning of the luminaires was completely aligned with the logistical flows within the terminal. The maintenance schedule matched the terminal's operational downtime, thereby avoiding unnecessary outages.
The lesson that directly connects to the subject of this article: a quotation that does not take these considerations into account is incomplete by definition. Technical specifications, environmental analysis, lighting calculation, and a maintenance plan belong in every serious quotation for an industrial lighting project. More practical examples can be found at DFDS project page.
How JEL Products Can Help with a Complete Lighting Project
JEL Products not only supplies high-quality LED fixtures for the most demanding industrial environments, but also guides customers through the entire process, from quote to delivery. Specifically, this means:
- A professional lighting calculation based on your situation and current standards
- Transparent quotations with complete technical specifications per luminaire
- Engineering, foundations, lighting columns, and installation as an integral part of the project
- Luminaires suitable for extreme conditions, from high temperatures to corrosive environments
- ISO 9001 and VCA** certified working method for projects in industry, ports, offshore and construction
Whether it’s site lighting for a large industrial complex or specialized fixtures for a specific installation - JEL Products works with you every step of the way, from the initial design to final commissioning. Would you like to request a quote or discuss your lighting needs? Then please contact us with the specialists at JEL Products.
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