Large LED Wall Clock – Silent Quartz, Warm White Light, 40-60 cm

This clock lights itself. A warm white LED rated at 2700 to 3500 kelvin sits within the face, which places the color temperature in the range of an incandescent bulb rather than the blue-white of a work light. Three sizes are offered, from 40 to 60 centimeters square, and five models, A through E.

Color temperature is the specification worth reading closely. Below roughly 3500 kelvin, light reads as warm and yellow; above 5000 it reads as daylight and cold. A clock that stays lit through an evening needs to sit in the warm range or it will fight every lamp in the room around it. Size matters for the same reason, since a lit 60-centimeter clock is a light source in its own right rather than only a timepiece on a wall.

It suits a living room, a hallway, or a bedroom where a low light is useful at night. Five models mean the face design varies while the lighting and the movement do not.

• Movement: Silent quartz
• Lighting: LED, warm white (2700-3500K)
• Size: 40 x 40 cm, 50 x 50 cm or 60 x 60 cm
• Model: A, B, C, D or E