Tiger 24V 50-Meter Submersible Solar Water Pump

The Tiger 24V 50-Meter Submersible Solar Water Pump is another heavy hitter in the affordable, highly reliable direct-DC market. Like the Rutan, it is exceptionally popular for off-grid households and small-scale farming/irrigation because it strikes a perfect balance between price, power, and simple setup.

Technical Specifications & Performance

Key Features & Why It’s Highly Rated

• True Direct Connection (No External Controller): The Tiger pump features a built-in internal regulator. You don’t need a separate, expensive solar charge controller or inverter. You just link the positive and negative wires straight to your power source.

• Versatile Power Options: While optimized to run strictly on daytime sunlight via solar panels, it can also be hooked directly up to a 24V battery bank (two 12V batteries wired in series) if you need to pump water at night.

• High-Lift Capability: With a 50m max head, it is optimized for shallow wells, rivers, and boreholes. For the best flow rate, it performs at its absolute peak when used in setups up to 35–45 meters deep (approx. 110 to 150 feet).

• Daily Yield: In optimal sunlight, a Tiger pump can effortlessly deliver 10,000 to 15,000 liters of water per day, making it a massive asset for drip irrigation, greenhouses, or filling large elevated plastic storage tanks.

Crucial Solar Panel Matching Guide

Even though it is rated a “250W” pump, its internal controller can dynamically regulate input voltages between roughly 24V and 55V DC. To overcome natural solar energy losses (cloud cover, heat, and early morning/late afternoon angles), you should always slightly oversize your panels:

• The Ideal Setup: A single 300W to 360W Mono-crystalline solar panel (usually rated around 36V Voc).

• Alternative Setup: Two 150W solar panels wired together.

 Quick Installation Warnings:

1. Mind the Polarity: Because it is a DC pump, crossing the positive ($+$) and negative ($-$) wires during setup can instantly fry the internal controller. Double-check your connections before turning the panels on.

2. Check the Variant Requirements: Some Tiger variants explicitly state they can survive a dry run, while standard screw-type (3LSPS) models can suffer internal damage if run completely empty for extended periods. It is highly recommended to pair it with a basic float switch or ensure the water source never fully drops below the intake.