Sponsored coverage of the LitONES EaseGlowXP H04 describes a forward task light paired with a diffused rear light. The adjustable arm and controls are intended to let users alter the direction, brightness and tone for different desk activities.

Separating Task and Ambient Light in One Desk Lamp

That division can be useful when a workspace also serves for evening leisure. Position the task section over the work surface and consider how the ambient section illuminates the surrounding room. Treat the maker's comfort claims as product claims rather than a guarantee of individual results.

LitONES describes a dual-zone design with directed work light and a softer rear glow.