Big future awaits solar energy, so everyone understands this and therefore investors won't give up on this stock.
Long-term growth perspective is huge.
Thus, you can buy the stock now at it's lows and hold it untill the good times.Don't track it everyday, save your nerves. FSLR may at least double it's current price.
But you can take advantage of the future growth in short term trade:
Buy @ +-$50
Short stop @ $49
Take @ ~$59
Be aware, that there is a high probability to trigger your stop due to the coronavirus fears and economic or polytic impact, but still it worth it.
Have a good luck!