Gimbal-ring heads pivot inside an open aiming ring for tight, precise beam control — the classic solution for accent lighting in galleries, kitchens, and retail. This 4-foot H-style track kit runs three gimbal heads, each accepting an MR16 GU10 halogen bulb wired for line voltage. The black finish holds up under regular aim adjustments without looking scuffed. Line-voltage 120V wiring means the heads plug straight into the H-style track without a low-voltage adapter. Each head extends 5.13 inch from the track and aims through the full range of the ring. Features Head count: 3 Head style: Gimbal ring Lamp accepted: MR16 GU10 bi-pin — bulb sold separately Max wattage per head: 50W Track profile: H-style, 4 foot, line voltage Voltage: 120V, 0.417A Finish: Black In the box: (1) TR121 4 Foot Track, (1) TP155 Floating Power Feed, (3) TH322 Track Heads, All Required Mounting Hardware Ideal For: Gallery Wall • Retail Display • Kitchen • Living Room • Home Office Dry location, indoor use. cETLus Listed. Wire and install per NEC and local codes; dimming is lamp-dependent. Most NUVO track accessories and heads are interchangeable across finishes within the H-style profile.