Vehicle mounted hedge trimmer is a device used for trimming hedge, usually installed on vehicles, which can conveniently carry out trimming work in different places. To customize a car mounted hedge trimmer, the following aspects need to be considered:

1. Equipment specifications: The specifications of the vehicle mounted hedge trimmer include the size, weight, power, etc. of the equipment. These specifications need to be determined based on actual work requirements, for example, if the equipment needs to work on rugged terrain, it needs to have sufficient stability and durability.

2. Trimming tools: The trimming tools of the vehicle mounted hedge trimmer include blades, scissors, etc. These tools need to be selected based on the type and shape of the hedge to be trimmed. For example, if you need to trim tall hedgerows, you need to choose patches.

3. Vehicle type: The vehicle mounted hedge trimmer needs to be installed on the vehicle, so the type and size of the vehicle need to be considered. For example, if you need to work in a small space, you need to choose a small vehicle.

4. Safety equipment: The vehicle mounted hedge trimmer generates a large amount of dust and noise during operation, so it is necessary to install some safety equipment, such as dust masks, earplugs, etc.

5. Maintenance and upkeep: The vehicle mounted hedge trimmer requires regular maintenance and upkeep to ensure its normal operation. Therefore, it is necessary to consider the maintenance and upkeep costs of the equipment.

In general, customizing a car mounted hedge trimmer requires consideration of equipment specifications, trimming tools, vehicle types, safety equipment, and maintenance to meet practical work needs.