Joyacy

How many lumens does a living room need?

Multiply floor area by 100–200 lm/m²: a 20 m² living room needs 2,000–4,000 lumens from all its fixtures together.The unit behind the question is the lux: one lumen spread over one square metre. The same 1,500 lm that feels generous in a 15 m² room (100 lux) would leave a 30 m² room at a dim 50 lux — hallway level. Area, not bulb count, sets the result.Other rooms carry their own bands.

What colour temperature should the bulb be?

For a living room, 2,700 K — the colour of the incandescent bulb it replaces.Kelvin measures the tint of white light. A candle flame sits near 1,800 K, the old incandescent at 2,700 K, halogen at 3,000 K, neutral white at 4,000 K and daylight at 5,000–6,500 K. Each 1,000 K step is large enough to change how a white painted wall reads.Living rooms and bedrooms read best at 2,700 K, with 3,000 K as the crisp limit.