Chapter Five · Bulbs
Color temperature, by room.
Bulb color temperature, measured in Kelvin (K), is the difference between a fixture that flatters a room and one that fights it. Lower values feel warm and golden; higher values feel crisp.
2,200K
Candlelight
Mood · Ambient
The deep amber glow of incandescent or candle flame. Best for accent fixtures and exposed-filament bulbs where atmosphere is the point.
2,700K
Soft White
Living · Bedroom · Dining
The Rayonshine default. Warm, flattering, comfortable for evening rooms. Pairs beautifully with brass, wood, and warm-toned interiors.
3,000K
Warm White
Kitchen · Bath · Hall
Slightly crisper than 2,700K — useful where task accuracy matters but warmth is still wanted. Most-recommended for kitchens and baths.
4,000K+
Cool / Daylight
Workshops · Garages
Crisp and clinical. Reserved for workshops, laundry, and utility spaces where neutrality and visibility take priority. Avoid in living areas.