The app allows you to control the brightness and the on/off function. Went right onto the bamboo post in my orchid rocket. The light bulb itself is small but it puts out plenty of light.

These are a must for indoor plants! Will buy more units to enhance my green house. I wish the cord was longer and that the goose neck bits were a tad bend-ier.

The timer function works perfectly so far ( i have it on 9 hrs) the lights are nice and bright and plenty for all my cacti and succulents. The directions are easy to follow and the timer is fantastic.

The bulb is wired into the stand and will not take bulb replacements. I am very disappointed in the fact that it could cause a safety hazard if i had plugged it in.