Or some gardeners have had luck placing containers on top of the refrigerator. When the seeds sprout, leave the strongest seedling in each cell and clip the weaker seedlings with scissors. Keep the cells moist but not soggy. Inadequate light is the biggest danger to young pepper seedlings and will cause the plants to become weak and spindly. Placing the seedlings in a window often doesn't work because the amount of available light through the window decreases as the sun rises higher in the sky and the days approach the summer solstice.
Greenhouses have a much higher success rate as do fluorescent lights set up in a garage.
However, the lights must be 4 inches or less above the plants or the light will diffuse too much and the plants will not have enough light. Two weeks before transplanting, harden off the seedlings so they will not go into shock when they are planted in the garden. Move the trays outside in the daytime for a few hours at first. Gradually, increase the time until the plants are left outside all day and night. Transplanting Ideally, you should transplant the seedlings when the weather is cool and there is little wind.