24-Hour Mechanical Timer, 15 Minute Minimum, DIN Rail Mount, Built-in Battery, SUL180a AC220-240V Gray This programmable mechanical timer makes your life smarter and more convenient. DIN rail installation, easy to install. Features: Mechanical Timer: Large dial with clear display; Quartz movement starts automatically a few minutes after power on. Easy Operation: 24-hour timer, with manual switch, supports program timing (automatically turns on/off according to schedule) and permanent on/off. Integrated battery for backup. DIN Rail Installation: Convenient to mount and dismount, flexible to use. Compact size and light weight make installation easy. Transparent Dust Cover: Dustproof and splash-proof, extends service life. The transparent design has no impact on the display of the dial. Wide Application: For street lights, ventilation, fountains, signs, production equipment, broadcast and TV equipment, and more. For use in dry indoor environments only. Please Note: 1. Installation must only be carried out by a qualified electrician. 2. Read the user manual carefully before use. 3. Size and color may vary slightly due to manual measurement and different lighting conditions. Thanks for your understanding. Features: Model, Voltage: SUL181h, AC110-230V / SUL181h, DC12V / SUL181d, AC110-230V / SUL180a, AC220-240V (Optional) Material: ABS Built-in Battery: 1.2V 40mAh SUL181h NI-MH Battery: AC110-230V/DC 12V Color: Gray Contact Capacity: 16A Power: 2W Frequency: 45-60Hz (AC110-230V) Time Range: 24H Minimum Interval: 30 min Setting Time: 30 min/hour, 48 times Backup: 150H Contact Resistance: ≤50mΩ Insulation Resistance: ≥100mΩ Item Size: 54 * 68 * 110mm / 2.13 * 2.68 * 4.33inch Package Size: 11.5 * 7.5 * 6cm / 4.53 * 2.95 * 2.36in Package Weight: 192g / 6.77oz SUL181d, AC110-230V: Color: White or Gray (Shipped Randomly) Power: 1W Frequency: 50-60Hz Switching Capacity: 16A, 250V~, cos φ=1; 4A, 250V~, cosφ=0.6 Incandescent Lamp Load: 1100W Time Range: 24H Minimum Interval: 15 min Setting Time: 15 min/hour, 96 times Backup: 200H (230V); 100H (110V) Item Size: 54 * 65 * 90mm / 2.13 * 2.56 * 3.54inch Package Size: 9.8 * 7 * 6cm / 3.86 * 2.76 * 2.36in Package Weight: 135g / 4.76oz SUL180a, AC220-240V: Color: Gray Contact Capacity: 16A Power: 1W Frequency: 50-60Hz Load: 1000W Incandescent Lamp; 150W Energy Saving Lamp Time Range: 24H Minimum Interval: 15 min Setting Time: 15 min/hour, 96 times Backup: 72H Contact Resistance: ≤50mΩ Insulation Resistance: ≥100mΩ Item Size: 18 * 65 * 90mm / 0.71 * 2.56 * 3.54inch Package Size: 9.8 * 7 * 2cm / 3.86 * 2.76 * 0.79in Package Weight: 85g / 2.98oz Package List: 1 * Timer Switch 1 * User Manual (English)