Fotek SSR

Advantages

• Brute force power
• Low cost
• Standard part
• Input voltage from 3-32 DC, can be driven from transistor logic level and up
• Can be driven with PWM level, but not too high frequency

Disadvantages

• Cheapo clones may not give stated power, but they are still beefy

Sourcing

• $6.50 on Amazon - [1]