The Sigma LED Downlight is the smallest fixture across T21's entire premium Type C range — a single 6W output at D30xH71mm, a cutout diameter smaller than any other product in this tier, in White, Black, or Shine Black. Type C carries a 3-year warranty, a full year longer than the 2-year coverage on Type A and Type B products, reflecting the premium COB construction and reflector engineering used throughout this tier.

Where Benz occupies the entry position in Type B at D48.5mm, Sigma pushes considerably further into miniature territory at D30mm — a cutout roughly the diameter of a large coin, small enough for applications where even Benz's compact size is too visually prominent. Display cabinets, jewellery cases, narrow cove details, and any recess where the light source needs to almost disappear into the surrounding material are the genuine use case here, not general room illumination. At H71mm, the fixture body is proportionally deep relative to its narrow diameter, which is typical of very small-cutout downlights — the depth compensates for the reduced diameter to still house adequate COB componentry and thermal management.

Sigma ships without a separate control-type variant listed — unlike most other Type C products offering both On/Off and RF+BT options, Sigma's compact scale and specialised close-range application make a single control configuration the practical specification. Confirm current control options directly with T21 via WhatsApp if a specific project requires app-controlled dimming on this exact fixture.

Three finishes cover the standard range: White and Black for neutral applications that recede into the surrounding material, Shine Black for a higher-gloss accent where the small fixture itself is meant to read as a deliberate detail rather than disappear entirely.

• White: Neutral, recedes into light-coloured display or cove surfaces
• Black: Neutral, recedes into dark-coloured surfaces
• Shine Black: Higher-gloss accent where the fixture is a visible detail

Premium COB technology, 3-year warranty. Dispatched from Bengaluru within 24 hours. All India delivery. WhatsApp +91 94484 64040.

What is Sigma's smaller D30mm cutout actually used for compared to standard-size downlights?

Sigma's D30mm cutout suits applications where even a compact Type B downlight like Benz (D48.5mm) is too visually prominent — display cabinets, jewellery cases, narrow cove lighting details, and recesses where the light source needs to nearly disappear into the surrounding material rather than serve as general room illumination.

Why doesn't Sigma offer an RF+BT app-controlled variant like most other Type C downlights?

Sigma's compact scale and specialised close-range application make a single control configuration the practical standard specification, unlike larger Type C products built for general room use where app-controlled dimming is more commonly requested. Confirm current control options directly with T21 via WhatsApp +91 94484 64040 if a specific project requires app control on this fixture.