Metal Halide Ballasts Marijuana Horticulture by Jorge Cervantes The ballast for 1000-watt halide will operated standard, clear, and phosphor-coated halides on a 120 or 240 volt current. Different ballast are…

Lumen Maintenance and Life Marijuana Horticulture by Jorge Cervantes The average life of a halide is about 12,000 hours, almost two years of daily operation at 18 hours per day.…

Construction and Operation Marijuana Horticulture by Jorge Cervantes Metal halide lamps produce light by passing or arcing electricity through vaporized argon gas, mercury, thorium iodide, sodium iodide, and scandium diode…

Metal Halide Systems Marijuana Horticulture by Jorge Cervantes The metal halide HID lamp is the most efficient source of artificial white light available to growers today. It comes in 175,…

HID Bulbs Marijuana Horticulture by Jorge Cervantes Many new HID bulbs have been developed in the last few years. The most notable have been the 430-watt HP sodium, pulse start…

HID Ballasts Marijuana Horticulture by Jorge Cervantes A ballast regulates specific starting requirements and line voltage for specific HID lamps. Wattages from 150-1100 use old-fashioned coil transformer-type ballasts. Smaller wattages…

High Intensity Discharge (HID) Lights Marijuana Horticulture by Jorge Cervantes Growers use HID lamps to replace natural sunlight indoors and grow outstanding cannabis. High intensity discharge lamps outperform all other…

Light Movers Marijuana Horticulture by Jorge Cervantes Replicate the movement of the sun through the sky with a motorized light mover. A light mover is a device that moves amps…

More Free Growing Light Marijuana Horticulture by Jorge Cervantes Even though the lumens-per-watt conversion is lower with 400-watt bubs than 1000-watt bulbs, hanging ten 400-watt amps over the same area…

Reflective Light Marijuana Horticulture by Jorge Cervantes Flat white contains little or no light absorbing pigment, so it absorbs almost no light and reflects almost all light. Do not use…

Reflective Hood Study Marijuana Horticulture by Jorge Cervantes I constructed a black room, everything black inside, to measure the amount of light reflective hoods yield. The room was 10 x…

No Reflective Hood Marijuana Horticulture by Jorge Cervantes One option is to remove the reflective hood. With no hood, the lamp burns cooler and emits only direct light.

Water-Cooled Lamp Fixtures Marijuana Horticulture by Jorge Cervantes Water-cooled and air-cooled lamp fixtures are somewhat popular in hot climates. These lamps run cooler and can be moved closer to plants.…

Air-Cooled Lamp Fixtures Marijuana Horticulture by Jorge Cervantes Several air-cooled lights are available. Some use a reflective hood with a protective glass face and two squirrel cage blowers to move…

Vertical Reflective Hoods Marijuana Horticulture by Jorge Cervantes Reflectors with vertical lamps are less efficient than horizontal ones. Like horizontal bulbs, vertically mounted bulbs emit light from the sides of…