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H2 PRO 550

Dimmable, fire-rated LED downlight

See this product in situation

Products codes: DL35638NW, DL35660NW, DL35638WW, DL35660WW, DL3566027, DLT35638NW, DLT35660NW, DLT35638WW, DLT35660WW

Our new and improved H2 Pro 550 features more innovative upgrades for ease of installation and reduced running costs.

A slimmer profile means easier installation, plus at over 100lm/W this is our most efficient downlight yet.

These updates are in addition to the typical H2 Pro quality and features you can depend on; fire-rated, dimmable, and available with our seven-year extended warranty.

Plus a choice of two beam angles – 38° and 70° - 11 different interchangeable bezel options (four of which have paintable finishes) and an IP65 rating make this downlight the ideal choice for lighting any room, anywhere.

For a quicker, easier and more secure installation try the 'T' connector version. With all the benefits the H2 Pro 550 has to offer and more, the H2 Pro 550 T LED downlight cuts installation time down dramatically. By using a loop in loop out push-fit terminal connector not only will you save time but you will find it easier to install using no tools as compared to more traditional screw fit or ratchet connectors.

Suitable for both new & retrofit installations and includes an adaptor for both UK and EU cable dimensions.

Why not watch our video and learn how you can save time by using the decorator box & 'T' connector

Features & Benefits:


Only 5.2W*

30, 60 & 90-minute fire rating

Mains dimmable as standard

Slimline twist & lock bezels (sold separately)

Equivalent to 50W halogen

Flexible driver position for easy installation

Shallow profile depth - 49mm*

Terminal Connector Features & Benefits:

Quick, easy and secure installations

Loop in / loop out push-fit terminal connector

No tools required


*Technical specifications, product dimensions, wiring diagrams and photometric data for the 2700K version differs from other colour temperature versions shown on this page. Please contact our team on 01604 495151 or This email address is being protected from spambots. You need JavaScript enabled to view it. to find out exact technical information. 

    Construction material: mild steel / plastic