The dual axis stand was purchased from Ali Express.
The following description came from the Ali Express website.

DC 2 Axis Gimbal Accessory for Dual Axis Solar Tracker Controller Solar Tracking System Monitoring

Features:
- Load capacity: not exceeding 4kg/8.8lb at DC 24V; not over 2.5kg/5.5lb at DC 12V
- With limit switches: Automatic protection will be enabled when it reaches a specific position
- As soon as the gimbal is powered on, it will start to work.
- When the direction of the current is changed, the direction of movement will be reversed.
- The motor speed is 1RPM
- Its body is made of all-metal, and the bracket is made of ultra thick aluminum alloy with excellent stability
- Ultra-low speed gear worm motor, all metal gears and torque of 35g/0.08lb
- With self-locking, it can achieve all-round dual-axis tracking.
- There are two horizontal and two vertical limit switches to avoid tangled wires

Specifications:
- Motor name: Gear motor with worm and worm wheel
- Motor voltage: 5V-12V-24V
- Motor speed: 1RPM
- Motor power: 30W
- Horizontal rotation angle: 340°
- Gimbal specifications: Base 86mm/3.4", height 420mm/16.5", and worm 240mm/9.4"
- Vertical rotation angle: 120°
- Load capacity at 24V: ≤4kg/8.8lb
- Load capacity at 12V: ≤2.5kg/5.5lb
- Bracket material: aluminum alloy + 3mm/0.1" steel plate
- Gearbox material: metal gears
- Gimbal mounting panel: 40 x 100mm/1.6 x 3.9"

Package Included:
- 1 x Set of 2 Axis Gimbal

Packaging Details:
- G.W.: 1.2kg.