heat from Halogens is actually harmful to plants. Also the CRI rating is not suitable for growing plants. As Midlife said, floros or HPS are your best bet. ( Floros have blue spectrum good for veg and HPS is red spectrum good for flowering.) Optimal temperature is 77 or 78 for photosynthesis, and halogens get real hot fast.
Exodus_herbman Reviewed by Exodus_herbman on . Halogen light question I have been using a 150 watt 2430 lumens halogen light for my first grow. The plants are doing fine and are out in the sun for 3-4 hours a day. I live in so-cal so the sun/temp is great. They are under the light the rest of the time. The plants are 1 week old and have the 2nd set of leaves growing. My question is how long can I go with using this light? I only have 2 plants in the closet. Can the light be used for flowering? Thanks Rating: 5