Feature: 1. [ABS+Brass] The speed controller is made of high quality ABS+brass material, which is shockproof, wear resistant and durable. 2. [Sealed Structure ] The sealed structure of the whole shell effectively resists dust from entering the interior. 3. [Guide Rail Installation] The wiring is simple, clear at a glance, and the guide rail installation is quick and easy to use. 4. [Easy To Install] The AC motor speed regulating switch can be installed on the equipment used with voltage. 5. [Suitable Application] The AC motor speed controller switch is used in conveying equipment, elevator industry, machinery industry. Specification: Item Type: Speed Controller Material: ABS+Brass Model: DV1204W Uses: Conveying equipment, elevator industry, machinery industry Rated Voltage: 220VAC Rated Current: 0.1A~0.3A Applicable Power: 60~90W Power Frequency: 50/60Hz Installation Method: Guide Rail Installation Package List: 1 x Speed Controller Note: Must be installed by professional electrical staff!