Look for some LED lights, i have grow this under LEDs in my basement and have just moved them out to my greenhous. They have produced peppers under LED to.
If you dont have many plants i would have looked into this I think that one could be used to cover 3 plants.
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For my >30 plants i have used 4 of this type (its not bulb)
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Went to walmart and found a 4 pack of 23watt bulbs. Came home and made this which only took about 20 minutes. The best thing is that it cost less than $30! Keeps temperature between 82 and 88 degrees.