How many lumens is a 9 watt CFL bulb?
9 watt compact fluorescent spirals are excellent replacement for up to 40 watt incandescent bulbs. These bulbs emit about 550 lumens, use one quarter of the energy and last up to 5 times as long.
How bright is a 9 watt CFL bulb?
Compact Fluorescent Light Bulb T2 Spiral CFL, 2700k Soft White, 9W (40 Watt Equivalent), 540 Lumens, E26 Medium Base, 120V, UL Listed (Pack of 2)
How many lumens does a plant need?
Most plant leaves do their best conversion with sunlight between 3,000 and 4,000 lumens per square foot.
How many lumens does a CFL produce?
On average, an incandescent bulb produces around 14 lumens per watt, compared to 63 lumens for energy saving compact fluorescents (CFL) and 74 for LED bulbs. Some of the most energy to light efficient LED bulbs are now reaching over 120 lumens in Energy Star tests.
Do lumens matter when growing plants?
The more lumens, the brighter and more powerful the light is. Vegetable seedlings and other “full sun” plants require about 2000 to 3000 lumens (at minimum) per square foot of growing space. So, if you’re growing just a single standard tray of seedlings, using a grow light that emits 3000 lumens is sufficient.
How many Watt’s and lumens do I need per plant?
Always keep CFLs 1-4 inches away from your plants. Veg you want to avg 80-120 watts per plant. Flowering you want to avg 110-150 watts per plant. More is always better for bigger yields and faster grows. How many watt’s and lumens per plant do i need for vegetate and how far away from the plant?
How many lumens do I need for my indoor grow lights?
But anyway in a nutshell… Minimum amount of lighting needed is around 2000 lumens per square foot. Mid range is around 5000 lumens per square foot. Optimal is 7000-7500, or higher, lumens per square foot. *I’m only using CFLs as a reference here, with the assumption they’re kept at a distance of 3 – 5 inches from the plant.
How many lumens do you use for Vegging?
For vegging use 6400K and for flowering use 2700K cfl’s. thx. i got 4x 100watt – 1600 lumens that’s 6400. is that good?