These are the best inverters from Samlex. Samlex Pure Sine Wave Inverters are the prefered choice when a clean, pure source of AC power is desired. With Samlex pure sine wave inverters, your audio and video equipment will run without any buzzing or humming. 12V DC input and dual GFCI outlet for AC output. Perfect for small loads less than 300 Watts. These Samlex inverter are great for televisions, laptops and many other devices. Samlex 300 Watt Pure Sine Wave Inverter Specs: Weight 3.3 LBS Measures(LxWxH) 8.5 x 5.75 x 2.5. Model: PST-30S-12A. Rated output: 300 Watts. Surge Power: 500 Watts.