BEST LED GROW LIGHTS
If you are considering upgrading to LED Grow Lights, check out estagecraft. https://www.estagecraft.com/
LED panels use about 40% less energy while providing a more complete spectrum of light which the plants use to grow and bloom. Instead of changing from MH to HPS for the flowering stage, you can simply just flip a switch to enable the red spectrum to grow large buds.
Using less energy also means you are producing less heat which require fans to cool.
estagecraft provides reviews of the latest LED Grow Lights. Check them out....