The Timeguard TGBD4 4 Hour Electronic Digital Boost Timer delivers precise, user-friendly control for electrical appliances, offering instant timed power with a simple button press. Designed for modern energy management, it combines digital accuracy with a clean LED interface, making it ideal for heating and lighting control in homes and commercial spaces. Key Features : Digital Boost Control: Instant timed output activation with easy push-button operation Adjustable Timing Range: Selectable boost from 30 minutes up to 4 hours in 30-minute increments Clear LED Display: Shows selected duration and real-time output status for easy monitoring Wide Application Use: Ideal for immersion heaters, towel rails, room heaters, and lighting circuits Load Compatibility: Supports LED, CFL, fluorescent, and incandescent lighting types Illuminated Boost Button: Optional indicator light for enhanced usability Flexible Installation: Fits standard 25mm flush or surface mount back boxes Energy Efficient Control: Helps reduce unnecessary power usage with timed operation Specifications : Product Type: Electronic Digital Boost Timer Switch Function: 4-hour programmable boost timer with countdown control Voltage: 230V AC, 50Hz Load Rating: 13A resistive (up to 3kW) Contact Type: Normally open Insulation: Class II double insulated Design: Unfused electronic control unit Mounting: Fits standard 25mm flush/surface wall boxes Operating Temperature: 0°C to +45°C Display: LED digital time and status indicator Application: Heating systems, lighting control, towel rails, immersion heaters Compliance: Conforms to latest EC Directives