After more than a decade in foreign trade, factory clients often ask me: "What wattage of LED tri-proof light is best for factory lighting?" There is no fixed answer-the key is to match power to mounting height, required illuminance and workshop conditions. Here is a clear guide based on our daily shipments and client feedback.
Wattage is not just a number. A proper LED triproof lamp has high luminous efficacy, so the same brightness uses less power. Too low and illuminance falls short; too high and you waste electricity and may create glare.
Start with mounting height and required illuminance
Ceiling height is the main factor. For ordinary processing areas at 3–5 m, 20–40 W with proper spacing usually meets work needs. For 6–8 m or higher, 50–80 W or more is often required to keep floor brightness adequate. In logistics and storage areas many clients choose a led warehouse light solution, with power and optics optimised for even coverage over large spaces.
Match protection rating to the environment
Factories are often damp and dusty, so confirm protection first. An IP65 waterproof light rating covers waterproof and dustproof needs for most workshops. Suitable wattage still depends on reliable protection. Areas with explosion risks require a certified Explosion-proof linear light that meets the relevant standards; power selection must follow safety rules.
Consider efficacy and real energy use
At the same rated power, higher-efficacy products deliver more light and save more electricity. Factory lighting accounts for a noticeable share of power consumption; choosing high-efficacy tri-proof lights meets illuminance targets while controlling long-term costs. Colour temperature and colour rendering also matter-neutral or cool white with good CRI is usually preferred in work areas to reduce visual fatigue.
Factor in layout and quantity
Once wattage is decided, spacing and quantity still need attention. Too wide a spacing causes uneven light; too dense wastes energy. We normally suggest a power-and-quantity combination based on the workshop size, height and target illuminance clients provide.
From our actual shipments, 30–60 W linear tri-proof lights are the most common choice for food processing, machinery and warehouse factories. Market quality varies; driver and heat-management design decide the long-term stability of higher-wattage units.
When enquiring, it helps to provide ceiling height, area size, target illuminance or existing lamp wattage, and a short environment description. This allows us to recommend the right power and model and avoid both under- and over-specification.

If you are deciding the wattage of LED tri-proof lights for a factory or want to confirm whether a model fits, share the actual conditions with us. We will match the right LED tri-proof lights based on real shipment experience. Leave a message or send an inquiry-we reply with practical advice.
