Lighting

• What is a suncircle? (circular light mover)

• GrowFAQ Electrical Safety Hazard Warning, The Physical Effects of Electricity

• How do I convert a common home security light into a remote ballast grow light?

• What are compact fluorescents and how can I use them for growing?

• Jackerspackle's Lighting Coverage Primer

• What do all of those lighting terms mean?

• How can I hang an adjustable reflector in a box-grow?

• Basic info on fluorescent lighting

• Can I use foil on my florescents?

• How can I add a glass shield to a reflector?

• What are light cycles and how do I use them?

• How do I build my own Cool Tube?

• PAR for plants, Lumen for people.

• Should I use a light mover?

• How can I improve the air flow in air cooled light hoods?

• Can blacklights be used for growing?

• How do I manipulate the photoperiod for larger yields?

• Metal Halide safety and fixture recommendations.

• How to read light level with an SLR camera?

• What distance should my light be from my plants?

• What is photosynthesis?

• How much will it cost to run my light?

Ballast information

• How can I build my own HPS or MH light system?

• Building and buying an HPS system

• Does the bulb have to match my ballast?

• What is a switchable ballast?

Identification and Comparison

• What is color temperature of a bulb?

• H.I.D bulb information

• Can I grow using halogen lights?

• What are Compact Fluorescents?

• H.I.D Light description

• When should I replace my lamp?

• What is a conversion bulb?

• HID vs. Fluorescents

• What type of lighting is best?

• How can I improve my indoor lighting?

Product information

• Bulb information and specifications

• Where can I buy MH/HPS lights?

Reflectivity

• How do I position a rectangular hood in my rectangular garden?

• All you need to know about Mylar

• How does hood orientation relate to efficiency?

• Can I use foil to reflect light?

• Is a dimpled or polished reflector better at reflecting light?

• Are mirrors good for reflecting light?

• What is black and white poly and how do I use it?

How can I improve my light efficiency

• How can I effectively hang and clean Mylar?
• Hood orientation as it relates to efficiency.
• What reflective materials can I use for my grow room?
• All you need to know about Mylar
• Is there a similar substitute for Mylar?
• Are mirrors good for reflecting light?
• Can I use foil to reflect light?