One green light tells you the ground is correct,the other tells you if the unit fried itself to protect your appliance

but the appliance you used it for is fine.

Using them to protect my appliances.

This is the second cube that I bought, the first one was 7 years ago and is still working, I personally use it to appliances and is worth the money, Its really protects your fridge and other appliances

I have lost several appliances over the years in my residence due to power surges

Bought 5 for my important small appliances - 1080

It's not uncommon for modern appliances to have 2 or 3 control boards for different purposes, including the User Interface (UI) controls.

If you have an appliance worth more than the cost of the protector, it should be on one

But for modern appliances, A/V equipment, computers, and other expensive/sensitive equipment, it's a must for taming surges

If there is a surge, these little devices are suppose to protect the appliance.

it's cheap insurance to protect the delicate electronics in modern appliances

I always like my appliances protected against outages

Since installing them, I haven't lost a single appliance.

I suggest everybody install these and save some money and protect you appliances.

During this time many people lost their TV's and other major appliances.

protectorsCons:- only protects one appliance or garage door opener.

This unit is designed to protect larger appliances, and it fits nicely behind the refrigerator

Protects my treadmill (I hope), and works as it should (I hope).

Useful at home but would not recommend it for traveling as it is large and crowds other plugs in receptacle.

Using it for nearly a year so far to protect a

Would buy it again, hope it works as it is supposed to

very good will order more and best quality you will be pleased as i

Protects my treadmill (I hope), and works as it should (I hope).

Useful at home but would not recommend it for traveling as it is large and crowds other plugs in receptacle.

Using it for nearly a year so far to protect a

Would buy it again, hope it works as it is supposed to