Description :

The SparkFun Variable Load Kit is designed to draw a specific amount of current from a voltage input
Can test power supply stability, battery lifetime, safety cutoffs, and other design elements
Supports inputs of up to 30V and currents ranging from a few mA to 4A
Can be used with a console on a PC for feedback or a 16x2 character LCD
Has capacitive touch buttons for adjusting settings: up arrow, down arrow, enter, and back
LED indicator shows whether the load is enabled or disabled
Total load power should be limited to 15W for safety.

The kit includes:

1x Variable Load Board
1x N-Channel MOSFET 60V 30A
1x Multiwatt Package Large Heatsink
1x Screw Terminal (2-Pin)
1x Hex Nut (4-40)
1x Phillips Head Screw (4-40, 3/8")
4x Phillips Head Screw (4-40, 1/4")
4x Plastic Standoff (4-40; 3/8")