Artificial Light Setup for Phalaenopsis: Bulbs, Distance, and Timers

Compact Fluorescent Setup

• 75W warm white + 100W daylight CFLs in 1x3 ft area = adequate for 2-3 plants.
• Place plants within 6 inches of bulbs (CFLs lack reflectors).
• Estimated 500-1000 foot-candles at that distance.

Photoperiod Management

• Use 24-hour timer: lights on 1 hour before dawn, off 1 hour after dusk.
• Creates 2-hour daylength extension that varies seasonally.
• Total light exposure (intensity × duration) matters more than foot-candles alone.

Ventilation & Fan Use

• Fan functions: cooling + evaporative drying.
• Run 24/7 if temps ≥80°F.
• Otherwise, run during morning watering to dry leaves.
• Or sync fan to light timer.