skip to main content

Growing under Lights

calculating what I need for supplemental light

16 years ago

If I decide to build a greenhouse (possibly one that doubles as a sunroom but that's another topic) - I am debating whether to supplement with some HID lighting.

If I use HPS, what wattage would I need, and how many, to bathe an area about 10 feet wide and 20 feet long with ~1500 footcandles of light, to supplement the natural winter light I'll get?

Sort by:Oldest

Comments (2)

wordwiz
16 years ago
Roughly, 300K lumens or 2400 watts of power.

Mike
hairmetal4ever
Original Author
16 years ago
OK, dumb question...

In a greenhouse, what would be the best location to place the ballasts so they don't have a risk of getting wet?
Related Professionals
Lansing Landscape Architects & Landscape Designers · Hempstead Landscape Architects & Landscape Designers · Poughkeepsie Landscape Architects & Landscape Designers · Huntsville Landscape Contractors · Houma Landscape Contractors · Saint Joseph Landscape Contractors · Lawton Landscape Contractors · Orange County Landscape Contractors · Bismarck Landscape Contractors · Sedalia Tile and Stone Contractors · Tulsa Tile and Stone Contractors · Bloomington Tile and Stone Contractors · Barnstable Tile and Stone Contractors · Hilo Tile and Stone Contractors · Victoria Tile and Stone Contractors

Related Stories

DECORATING GUIDES Your Decor: The Joy of the Calculated Risk

By Erika Ward - Erika Ward Interiors

Celebrate the Color and Surprise of Highly Personalized Homes

DECORATING GUIDES Celebrate Geometry for a Sharp-Looking Design

By Samantha Schoech

Take a calculated approach to design by incorporating crisp lines and angles that add structure to free-flowing forms

CONTRACTOR TIPS Learn the Lingo of Construction Project Costs

By Ventana Construction LLC

Estimates, bids, ballparks. Know the options and how they’re calculated to get the most accurate project price possible

FEEL-GOOD HOME 12 Very Useful Things I've Learned From Designers

By Becky Harris

These simple ideas can make life at home more efficient and enjoyable

UNIVERSAL DESIGN How to Light a Kitchen for Older Eyes and Better Beauty

By Sheridan Interiors, Kitchens and Baths

Include the right kinds of light in your kitchen's universal design plan to make it more workable and visually pleasing for all

GREAT HOME PROJECTS How to Add a Skylight or Light Tube

By Mariana Pickering (Emu Building Science)

New project for a new year: Increase daylight and maybe even your home’s energy efficiency by opening a room to the sky

LIGHTING Source List: 20 Pendants That Illuminate the Kitchen Island

By Annie Thornton

See the ceiling lighting fixtures that are popular on Houzz and find out where to get them

ARCHITECTURE Modern Roof Features for Light, Rhythm and Interest

Discover the benefits of skylights and other high-up elements beyond the obvious

COLOR Want Gorgeous Interior Colors? Look to the Light

By Buckminster Green LLC

See how to manipulate natural and artificial light — and learn about those baffling new bulbs — to get the exact room colors you want

LIGHTING Lighting: The Hardest Working Fixtures of the Home

By Kerrie Kelly Design Lab

Create Your Favorite Mood With a Mix of Sunlight and Fixtures

Sponsored