Key Points

• Lamp technology: Common lamp types include LED, CFL, Fluorescent and Halogen, each offering different efficiency, lifespan and compatibility considerations.
• CCT (Correlated Colour Temperature): Measured in kelvin (K), CCT describes the shade of white light emitted (warm white, cool white and daylight).
• CRI (Colour Rendering Index): Measured from 0–100, CRI indicates how accurately colours are rendered under the lamp. Higher values (closer to 100) appear more natural.
• Lighting control: Switching, dimming and automation can define brightness, timing, ambience and energy usage through compatible control gear.
• Disposal & recycling: Some lamp types require regulated disposal (for example, mercury-containing lamps). Follow local requirements and approved recycling programs.

Technology

There is no single lighting product that is best for every installation. Selecting the right solution depends on the application, compliance requirements, environment (indoor/outdoor), and the desired light output and colour quality. The sections below outline the key lighting considerations to help trade customers specify suitable products for each job.

Bulb Types

Lamp technology continues to evolve, with many applications now standardising on LED due to efficiency and service life. When selecting or upgrading lamps, confirm fitting type, voltage, driver requirements, dimming compatibility and any site standards that apply—particularly in commercial and industrial environments.

LED (Light Emitting Diodes)

LEDs are widely used across residential, commercial and industrial projects due to their high efficiency and long lifespan. Not all LED products are dimmable—if dimming is required, select a suitable lamp or luminaire and confirm compatibility with the existing dimmer or control system. LEDs are available in a wide range of CCT options and can provide excellent CRI.

CFL (Compact Fluorescent Lamps)

CFLs are generally more efficient than older incandescent and halogen technologies, but typically less efficient than LED. CFLs can offer a broad CCT range and good CRI, but many contain mercury and must be handled and disposed of responsibly in line with applicable state/territory requirements.

Fluorescent

Fluorescent lighting is common in legacy commercial and industrial installations. While historically cost-effective, LEDs have reduced in cost substantially and often provide a better lifecycle outcome. When upgrading, confirm whether you are replacing the lamp (tube retrofit) or the entire luminaire (fixture replacement such as an LED batten), and ensure wiring/ballast compatibility and compliance.

Halogen

Halogen lamps are a type of incandescent lamp and are typically less efficient and shorter-lived than LED alternatives, often resulting in higher lifecycle cost despite lower upfront pricing in some cases. Halogens generally provide excellent colour rendering and are commonly dimmable, but are usually available only in warmer colour temperatures.

Colour of Light

“White light” contains a mix of visible wavelengths. Artificial light sources reproduce these wavelengths at different intensities, which is why white light can appear warmer (more yellow) or cooler (more blue). Two key metrics used to specify light quality are CCT and CRI.

CCT (Correlated Colour Temperature)

Measured in kelvin (K), CCT describes the tone of white light produced by a lamp. Typical ranges are: 2700–3200K (Warm White) for living spaces and hospitality; 4000–4100K (Cool White) for offices, garages and workshops; and 5500–6500K (Daylight) for task-focused spaces where a cooler tone is preferred. Always match CCT to the environment, use case and site standards (especially across multi-area commercial fit-outs).

CRI (Colour Rendering Index)

CRI is rated from 0 to 100 and indicates how naturally colours appear under the light source. A CRI above 80 is typically suitable for general lighting. For colour-critical applications (retail displays, food prep areas, galleries or detailed task work), specifying 90+ CRI may be appropriate. CRI varies by product and is independent of CCT.

Watt (W)

Watts indicate power consumption. Historically, wattage was used as a proxy for brightness, but modern lamp technologies—particularly LEDs—produce far more light using less power. Use watts primarily for load calculations and energy considerations, not brightness.

Lumens (lm)

Lumens indicate how much light a lamp produces and are the most useful measure of brightness. Higher lumens mean a brighter lamp. As a general guide for a single light source: around 400–500 lm may suit a table lamp, 800–1000 lm may suit a typical room, and 1200–1500 lm may suit larger task areas. Commercial and industrial sites should be specified to relevant standards and project requirements.

Ingress Protection (IP Rating)

An IP rating indicates protection against dust and water intrusion. It is represented by two digits: the first digit (0–6) indicates solid object protection and the second digit (0–9) indicates water protection. Higher numbers mean greater protection. Common examples include: IP20 for general indoor use, IP44 for bathrooms and some outdoor locations, and IP65+ for areas exposed to heavy rain or wash-down environments. Always match the IP rating to the installation environment and compliance requirements.

Lighting Controls

Lighting controls are an essential part of any lighting system, including switches, dimmers, sensors, timers and automation solutions. Control choices impact energy usage, user experience and compliance requirements in commercial applications.

Controls can be grouped by control type and electrical function. Control type refers to the mechanism used to operate the device (toggle, rocker, slider, push-button or rotary). Electrical function refers to installation usage (single pole, multi-way switching, sensor switching, smart control and dimming). Always confirm compatibility between lamps/luminaires and the selected control method.

Emergency & Compliance Lighting

Many commercial sites require emergency and exit lighting to meet safety and compliance obligations. CNW supplies options to support compliant installations and ongoing maintenance programs—browse our emergency lighting range for trade-ready products suited to commercial and industrial environments.

Disposing of Bulbs

Proper lamp disposal at end of life depends on the lamp type. CFLs and some fluorescent lamps contain mercury and must be disposed of and recycled responsibly. Approved recycling and collection programs may be available via local government and community initiatives. For more information and collection locations, refer to Recycling Near You and FluoroCycle.