Brighten up large open areas and high-ceiling spaces with our commercial-grade PL-T 4-Pin 42W 840 Cool White GX24q-4 CFL Lamp.
Utilizing the highly efficient 840 industry color code, this single-ended compact fluorescent lamp produces a crisp, vibrant 4000K Cool White light. It offers excellent visual clarity and a clean, refreshing atmosphere that enhances safety and alertness in any room.
This high-performance bulb features an advanced triple-tube cluster design, packing an impressive light output into a very compact physical size.
Equipped with a standard GX24q-4 4-pin base, it is engineered as a robust, long-lasting replacement bulb for recessed downlights and surface fixtures throughout New Zealand.
Key Features
-
High Lumen Output: Triple-turn tube geometry delivers dense, powerful illumination from a highly compact layout.
-
Productive 4000K Tone: Creates an energizing and balanced workspace environment with zero yellow or clinical blue undertones.
-
Excellent Color Rendering: Rated at CRI 80+ to ensure commercial interiors, products, and surfaces look crisp and true to life.
-
Fully Dimmable Capable: Supports smooth dimming control when operated via a compatible dimmable electronic ballast.
-
Extended Commercial Lifespan: Designed for up to 13,000 hours of operation to keep maintenance overhead low.
Technical Specifications
-
Wattage: 42W
-
Voltage: 230V / 240V
-
Base Type: GX24q-4 (4-Pin format with specific plastic guide-peg alignment)
-
Color Temperature: 4000K (Cool White / 840 Code)
-
Light Output: Approx. 3200 Lumens
-
Tube Profile: Triple-tube (6 parallel glass columns)
-
Average Lifespan: Up to 13,000 hours
Replacement Scope & Compatibility
This 42W triple-tube lamp serves as a universal drop-in replacement part across standard commercial and retail lighting layouts in New Zealand.
Cross-Brand Compatibility Guide
You can use this bulb to seamlessly replace any of the following 42W GX24q-4 (840 / 4000K) manufacturer variations:
-
Philips: MASTER PL-T 42W/840/4P
-
Osram: DULUX T/E 42W/840 PLUS (Dulux T/E 42W/4000K GX24q-4)
-
Sylvania: Lynx-TE 42W 840
-
GE / Tungsram: Biax T/E 42W 840 LongLast
Common Applications in New Zealand
-
Commercial Downlighting: Deep-recessed ceiling downlights in high-ceiling retail malls, supermarket aisles, and office lobbies.
-
Public Venues: Perfect for school auditoriums, community halls, hotel reception areas, and modern airport terminals.
-
Outdoor Security: Extensively fitted inside covered commercial walkways, parking structure under-canopy pods, and wall-mounted exterior bulkheads.
Important Installation Notes for Customers
-
Verify the Base and Wattage: The GX24q-4 base is specifically keyed for 42W fixtures. It will not physically fit into sockets meant for lower wattages (like 26W or 32W), as the plastic guide pin configuration changes with each wattage tier.
-
Control Gear Requirement: Operates via an external high-frequency electronic ballast built into your light fixture. If your brand-new bulb only flashes or fails to fire, your existing fixture's ballast likely requires a replacement.
