When comparing downlights for offices or retail, wattage tells you almost nothing. Start with UGR — anything under 19 suits workspaces, while premium retail deserves UGR<16 deep-recessed optics.
Color consistency matters as much as brightness: insist on SDCM≤3 across batches so ceilings never look patchy after a mid-project replenishment order.
Finally, ask about the driver — an isolated, flicker-free unit with a 5-year warranty is the difference between a project callback and a quiet building. Our FT-DL series was engineered around exactly these five criteria.