Choosing site lighting involves more than just brightness. To maintain a safe, compliant, and productive environment, always ensure the light’s technical specifications are suited to your site’s unique demands.
1. Understanding Lumen Output
In the world of LEDs, lumens (lm) measure the total amount of visible light emitted. While traditional wattage tells you how much power a bulb uses, lumens tell you how much light you're actually getting.
The importance of lumen output changes depending on your task:
General Navigation (Site Clearance/Walkways): Aim for 500–1,500 lumens. This provides enough light for safe movement and rough work without excessive glare.
General Trade Work (Plastering/Carpentry/Bricklaying): Typically requires 2,000–5,000 lumens. This level of brightness ensures that surfaces are clear and measurements are accurate.
Detailed Inspection & Fine Work (Electrical/Soldering): Often requires high-intensity "Task Lighting" of 1,000–3,000 lumens concentrated into a small area, or overall area lighting exceeding 5,000+ lumens to eliminate shadows.
Large Area Illumination (Outdoor Sites/Loading Bays): You’ll need high-output floodlights ranging from 10,000 to 20,000+ lumens to cover expansive zones safely.
Bear in mind that
Lux is measured in lumens per square metre. To meet the 100–200 lux specified by the
HSE for detailed work, increase lumen output as the workspace expands.
2. Power Source: Corded vs. Battery vs. Rechargeable
The power source you choose can significantly impact site safety and project speed. Here is how they compare:
Consider the following comparison of power sources, broken down for clarity:
Power Source Comparison
Pros: Unlimited runtime. Ideal for 24/7 sites or long shifts. Generally offers the highest lumen output.
Cons: Trip hazards. Cables require management. Limited by proximity to a transformer or power outlet.
Best For: Permanent workshops, stairwells, and long-term scaffolding.
Battery Powered (Removable)
Pros: Infinite portability. If a battery dies, swap it for a fresh one and keep working. Often compatible with your existing 18V power tool platform.
Cons: Heavier. The weight of the removable battery can make hand-held use tiring over long periods.
Best For: Working across different floors or sites where you already use a specific tool brand.
Pros: Compact & Lightweight. No separate batteries or chargers to carry. Often features USB ports for charging your phone on the go.
Cons: Fixed runtime. Once the internal battery is depleted, the light is out of commission until it is plugged back in to charge.
Best For: Quick inspections, service calls, and domestic "under-sink" repairs.
3. Durability & "IP" Ratings
Sites are unforgiving environments. Beyond the power source, check the IP (Ingress Protection) Rating:
IP44: Protected against splashing water—fine for most indoor site use.
IP65/66: Dust-tight and protected against water jets—essential for outdoor floodlights and ground-level task lights exposed to the elements.