Wattage offers from Amazon.com

STAX9. Ideal for recharging SUV, Boat, and car. 40amp Maximum DC output current. Built-in short circuit and overcharge protection.
Price: $114.14 [Notify me when price goes down.]

Base: Medium (Standard). 5100K Color Temperature. Average Life Hours: 8000. 15 Watt Incandescent Equivalent (150 Lumens).
Price: $5.84 [Notify me when price goes down.]

Converts grounded USA plugs to grounded German Shucko (5 mm).
Price: $3.99 [Notify me when price goes down.]

90-watt ETL-listed ergonomic footrest delivers gentle radiant heat. Adjustable heat and 3 different positions; made of molded hard plastic. Converts from footrest to heated floor mat or vertical heated panel. Never too hot to touch; safety switch prevents overheating.
Price: $56.49 [Notify me when price goes down.]

CONVERTS PLUGS FROM ANY COUNTRY TO AN AMERICAN GROUNDED PLUG.
Price: $1.99 [Notify me when price goes down.]

Solid state circuitry with High or Low wattage indicator lights. It includes a circuit breaker reset button which corrects accidental overloads. Set includes five polarized adapter plugs to accommodate most foreign outlets. Converts foreign electricity in order to use electric shavers or hair dryers as well as battery chargers and irons and more.
Price: $37.75 [Notify me when price goes down.]

Solid state circuitry with High or Low wattage indicator lights. It includes a circuit breaker reset button which corrects accidental overloads. Dual wattage converter automatically senses high or low setting. Converts foreign electricity in order to use electric shavers or hair dryers as well as battery chargers and irons and more.
Price: $24.99 [Notify me when price goes down.]

ATX POWER SUPPLIES, WATTAGE: 250 W, FAN: SLEEVE, INPUT VOLTAGE: 95~132/180~264 VAC, 47~63 HZ. OUTPUT VOLTAGE: .3, , , -5,-12, V, DIMENSIONS: 5.9 X 3.4 X 5.5 , INCLUDES: AC POWER COR. D AND BUILT-IN SWITCH.
Price: $21.63 [Notify me when price goes down.]

Dual voltage converter for use with 50 watt and 1600 watt devices. Converts foreign voltage (220-240V AC) to USA voltage (110-120V AC). For use with hair dryers, irons, coffee makers, clothes steamers, hair stylers, radios, CD players, camcorder chargers, etc..
Price: $9.50 [Notify me when price goes down.]

Slide Dimmer. Set the Power Anywhere. Accepts 2-prong Cords.
Price: $21.95 [Notify me when price goes down.]