12V LED Puck Lights

12V LED puck lights are small round low voltage fixtures that put a focused pool of light into cabinets, shelving, and display cases. This category covers recessed and surface mount 12V pucks that run from a remote transformer and link together for multi puck runs.

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12V LED Puck Light Selection Guide

A puck light delivers a compact spot of accent or task light, and the 12V low voltage version keeps the wiring slim and safe inside cabinetry and millwork. 12V pucks sit in the Puck Lights group within Undercabinet Lighting, next to 120V LED Puck Lights for line voltage installs. For even counter coverage instead of spaced pools, compare Undercabinet Light Fixtures.

Match the Puck to the Spot

Match the mount and beam to where the puck goes and whether it accents or lights a task.

MountBest FitBeamNotes
Recessed puckCabinet and shelf undersidesFocused spotFlush, hidden look
Surface puckExisting cabinets, retrofitFocused spotMounts flat, no cutout
Display case puckGlass shelving and casesNarrow accentLow heat, safe near goods
Linkable kitMulti puck runsSet spacingRemote transformer sized to load

Output, Color, and Spacing

Pucks are low output by design, so space them to the look you want: closer for near continuous coverage, wider for distinct pools of accent light. 2700K to 3000K suits warm display and cabinetry, while 3500K to 4000K reads crisper for task areas. Choose a CRI of 90 plus where the pucks light food, retail goods, or finishes so colors look true.

Transformer, Linking, and Wiring

A 12V system runs from a remote transformer, so size the transformer to the total wattage of all the pucks on it plus a margin, and keep the lead lengths within spec to avoid voltage drop and dimming at the far end. Plan the link cords and connectors for the run. For line voltage pucks with no transformer, see 120V LED Puck Lights, and for continuous bars compare Undercabinet Light Fixtures.

Why Order 12V LED Puck Lights from QuickShipLights

Each product page shows live stock status, in stock pucks ship fast, and freight is free on every order with no minimum. For help sizing a transformer and spacing pucks for a cabinet or display, reach the lighting team through the QuickShipLights support portal before you order.

Frequently Asked Questions About 12V LED Puck Lights

12V puck lights run on low voltage from a remote transformer, which keeps the wiring slim and safe inside cabinetry and display cases. 120V pucks wire directly to line voltage with no transformer. Choose 12V for millwork and display, 120V for simple retrofits.

Yes. 12V is a low voltage system, so it needs a remote transformer that converts line voltage to 12V. Size the transformer to the total wattage of all the pucks on it, plus a margin.

Space pucks closer for near continuous coverage and wider for distinct pools of accent light. The spacing depends on the look you want and the mounting height under the cabinet or shelf.

2700K to 3000K gives a warm glow for display and cabinetry, while 3500K to 4000K reads crisper for task areas. Choose a high CRI where the pucks light food, goods, or finishes.

Many 12V puck systems are dimmable with a compatible transformer and control. Confirm the transformer and dimmer are matched to the pucks to avoid flicker or a limited range.

That is usually voltage drop from a lead that is too long or a transformer that is undersized. Keep lead lengths within spec and size the transformer to the full load so every puck gets full voltage.