How many hours a day should grow lights be on?
16 hoursAs a general rule of thumb, most vegetables and flowering plants need 12 to 16 hours of light per day, with flowering plants at the top end of that range.
Plan on giving most plants at least 8 hours of darkness per day.
Darkness is actually very important for the plant growth cycle..
What lights do professional growers use?
Today, the most widely used lights for professional use are HIDs and fluorescents. Indoor flower and vegetable growers typically use high-pressure sodium (HPS/SON) and metal halide (MH) HID lights, but fluorescents and LEDs are replacing metal halides due to their efficiency and economy.
Are grow lights effective?
LED grow lights are great because they are energy-efficient, durable, and have ‘tuned’ light spectrums to best meet the plant’s needs. However, there are still many excellent fluorescent grow lights that are much cheaper and still contribute to wonderful plant growth.
Are cheap LED grow lights worth it?
Efficiency also depends very much on the quality of the LED and this can vary by 200% between manufacturers. There are good reasons why some LED grow lights are cheap and others are expensive. … A higher efficiency, will produce more light per watt, and cost less to run, relative to the amount of light produced.
Are grow lights dangerous?
The bottom line is that LED grow lights are no more dangerous than any other type of grow light. HPS is much more dangerous than LEDs – high heat and risk of burns, risk of broken bulbs and fires, high environmental damage due to mercury content, high carbon footprint.
Why LED grow lights are better?
LED grow lights run much cooler than HPS resulting in an obvious set of benefits for the indoor grower. LED grow light units typically come as all-in-one fixtures, which are easier to work with in tight spaces. They can also be placed closer to plants in confined areas with very little risk of heat damage.