SYNERGY21 PoE+ Constant Current Driver 350mA 12-24V DC 8.4W (S21-3701)

Delivers a constant 350 mA output from any IEEE 802.3at PoE+ network, with an adjustable 12–24 V DC output for LED lighting and smart home devices.

Overview

The SYNERGY21 S21-3701 is a PoE+ constant current driver that converts 48–57 V DC from Power over Ethernet into a regulated 350 mA current. It supports output voltages from 12 V to 24 V DC, providing up to 8.4 W for connected loads. The unit features an RJ45 input for PoE and screw terminals for the output, housed in a plastic enclosure.

What stands out

• IEEE 802.3at (PoE+) compliant, works with standard PoE+ switches and injectors
• Constant current output of 350 mA, ideal for LED strings and modules
• Wide output voltage range (12–24 V DC) for flexible load matching
• Built-in protection against short circuit, overload, and over-temperature
• Operating temperature range from -20°C to +50°C

Technical details

• Product type: PoE+ Constant Current Driver
• PoE standard: IEEE 802.3at (PoE+)
• Input voltage (PoE): 48–57 V DC
• Output type: Constant current (CC)
• Output current: 350 mA
• Output voltage range: 12–24 V DC
• Maximum output power: 8.4 W
• Input connector: RJ45 (PoE In)
• Output connector: Screw terminals (2-pin)
• Protection features: Short circuit, overload, over-temperature
• Operating temperature: -20°C to +50°C
• Housing material: Plastic
• Application: LED lighting, smart home devices

Our verdict

A reliable PoE+ driver for low-power LED applications, offering constant current and robust protection in a compact plastic housing.