Product Description

The Cobra CPI 475 is a 12 volt DC to 120 volt AC power inverter with 400 watts continuous power handling and 800 Watts peak power. This unit contains a 5 volt USB output, modified sine wave, thermal shutdown, reverse polarity protection, low voltage shutdown, low voltage alarm, external fuse, 2 grounded AC receptacles, and includes a carry case, cigarette lighter plug, and direct- to battery cables.

Product Details

• Amazon Sales Rank: #1402 in Car Audio or Theater
• Brand: Cobra
• Model: CPI 475
• Dimensions: 2.60" h x 4.20" w x 6.40" l, 3.79 pounds

Features

• 400 W Continuous Power Handling
• 5v USB output
• 2 Grounded AC Receptacles
• Thermal Shutdown and Reverse Polarity Protection
• Carry Case

Customer Reviews

Hard working Inverter does fine
We needed a higher power interter to use in our RV when camping without shore power. We needed to power two laptop computers, charge cell phones and PDAs and run a small fan. This Cobra unit reviewed well so I ordered one from Amazon. It was delivered in just a few days (thanks Amazon). It has a solid feel to it, connectors are of good quality, and it is small enough not to be obtrusive in the confines of an RV. I used the cigarette lighter plug and put this on our dining table. The two AC plugs accommodated two AC adapters for laptops. As a bonus, there is a USB port on the Cobra that will supply 5 volts! So, I can charge my Blackberry simultaneously. What a delight!! The unit has an internal fan which only runs as needed. If I'm just charging a cell phone, then the fan does not run - but when I've got a load on - the fan runs and effectively cools the inverter. This is not a pure sine wave inverter but I've had no trouble at all using it with various laptops, pdas, fans, and cell phone chargers. I've not used it to power a TV or Radio (those could be more sensitive to interter noise). After a months use, I'm delighted with the inverter - it meets my needs completely.

Be aware of limitations
When I purchased this inverter, I was aware that if I needed to draw more than about 140 watts, that it must be directly connected to the battery, not plugged into a cigarette lighter outlet. However, I also found that if the inverter detects that the battery voltage is geting low, it sounds a loud continuous alarm which cannot be switched off and cannot be adjusted. This makes it nearly useless unless the battery is fully or nearly fully charged. Be aware.

Great little inverter
This unit is small, light weight, comes with a carrying case, two ways to connect to 12v supply and low cost, what more could you ask for.