I use architect's lamps with 100W LED 5000K bulbs.
- Lamps are easily obtainable at Goodwill stores
- LED bulbs should be about 5000K, which are similar in colour to daylight
- Lights should be used only during daylight hours, to give plants rest for the night
I used this system last winter for my tropical Jerusalem Cherry trees with great results and will be continuing for the time to come.
The following user(s) said Thank You: Clicio, Mattsabonsainoob