This product is suitable replacement for DLT551500.

Product Overview

The Collingwood DLT551500B H2 Lite CSP LED Downlight delivers high performance, flexibility, and efficiency in a compact, easy-to-install design. Offering both wattage (4W/6W) and CCT colour temperature switchability (2200K, 2700K, 3000K, 4000K), it provides complete control over your lighting environment — from cosy warm tones to bright, clean white light.

This downlight is designed as a fit-and-forget solution with a robust build, smooth installation, and excellent energy efficiency of up to 145 lm/W. The H2 Lite CSP also includes large, accessible piano key terminals for quick loop-in/loop-out wiring and front-mounted switches for instant configuration. Please note: this model is no longer fire-rated.

Key Features

• Colour temperature switchable: Easily toggle between 2200K, 2700K, 3000K, and 4000K directly from the front of the fitting.
• Wattage adjustable: Choose between 4W and 6W output, delivering up to 780 lumens and 145 lm/W efficiency.
• Front-access switch controls: Configure settings effortlessly at installation.
• Innovative clip design: Smooth glide clips allow fast, secure ceiling installation.
• Quick-fit connector: Two-part first-fix connector enables safe loop-in/loop-out wiring and easy maintenance.
• TRIAC mains dimmable: Fully compatible with leading and trailing edge dimmers for versatile lighting control.
• ‘Ember Light’ mode (2200K): Creates a warm, low-blue-light atmosphere similar to a natural fire glow.
• Compatible accessories: Works with H2 twist-and-lock bezels and converter plates without affecting IP rating.
• Tested for compatibility: Confirmed to work seamlessly with Click Flow CT100 series connectors.
• Warranty: Backed by a 7-year manufacturer guarantee for long-term peace of mind.

Specifications

• Wattage & Lumens: 4–6W | 460–780lm
• Efficiency: 105–145 lm/W
• Colour Temperature (CCT): 2200K / 2700K / 3000K / 4000K
• CRI: >80
• Beam Angle: 55°
• Input Voltage: 220–240V AC
• IP Rating: IP65 (from below), IP20 (from above)
• Dimmable: Mains (Leading Edge/Trailing Edge)
• Power Factor: 0.84
• Operating Temperature: -20°C to +40°C
• Cut-Out Size: 68–72mm
• Height: 54mm
• Bathroom Zone: Zone 1
• Insulation Coverable: Rolled and blown insulation
• Material: Mild Steel / Polycarbonate
• Finish: White
• Lifetime: L70 70,000 hours
• Energy Class: C
• Certifications: Complies with Part B, C, E, P & L building regulations
• Mounting: Fixed (non-adjustable)
• Connector Type: Two-part first fix connector

Downloads

Data Sheet: Click here to view the Data Sheet