What this accessory isThe
AST LENS FOR 20W - SP15 is a beam-shaping optic, not a light fixture. It is a replaceable lens designed to be fitted to the 20W AST track head, where it narrows the distribution into an SP15 spot. Think of it the way a photographer thinks of a lens: the light source stays the same, but the way that light lands on the surface changes completely. Instead of a broad flood that lights the whole wall evenly, you get a concentrated circle with defined edges, higher contrast and a much stronger sense of focus on whatever you are highlighting.
Technical specificationsSKU: AST-TRH-20-SP
Brand: TUROLIGHT
Type: lens accessory for track head
Compatible fixture: 20W AST track head
Beam distribution: SP15 spot
Applications: residential and commercial projects
Light quality and beam controlBeam angle is the most underrated tool in a lighting plan. With a wide beam, a 20W head spreads its output over a large area and everything looks flat and evenly lit — pleasant, but not dramatic. With the SP15
spot lens, that same 20W of power is concentrated, so the lit object reads far brighter against its surroundings without you adding a single watt to the panel. That is why designers reach for narrow optics on art, sculpture, signage and merchandising: the perceived brightness goes up, the spill goes down, and the ceiling stops looking like a wash of glare. Since the optic does not touch the electrical side of the head, the colour temperature, the CRI and the dimming performance of the fixture remain exactly what they were before.
Installation and compatibilityInstallation is a tool-free, no-power job in most cases: the head is aimed and locked on the track, and the lens is fitted to the front of that 20W AST head. There is no wiring to modify, no driver to swap and no added load, which makes it a favourite of contractors doing a walkthrough with a client — you can try a narrow beam on one head, step back, and decide on the spot. Keep in mind that this lens is matched to the
20W AST track head specifically; it is not a universal optic for other fixture families. Buy one lens per head you intend to convert, and feel free to alternate along a single circuit so that accent heads and general-lighting heads share the same run.
Where it earns its keepA gallery hanging a new show can re-lens a few heads in minutes rather than re-aiming the whole ceiling. A boutique can put a tight spot on the mannequin in the window so it still reads at noon on a bright Canadian summer day, and keep wider heads over the fitting rooms. At home, the SP15 lens is ideal over a kitchen island, a bar counter, a stone fireplace surround or a collection of family photos in a hallway. Restaurants use narrow spots to put a clean pool of light on each table, and offices use them on reception logos and feature walls. Pair the lens with the AST track system you already have or are planning — the
AST track 2 ft H type 1 circuit 120V white, the
AST track 6 ft H type 1 circuit 120V white, the
AST track 12 ft H type 1 circuit 120V white or the
AST track 6 ft H type 1 circuit 120V black — and build a
track lighting layout that highlights exactly what matters. No documents are currently posted for this accessory; if a spec sheet becomes available, it will appear in the Documentation tab of this page.