The most important shortcoming of the Soleil Sun Alarm (pictured in the center) in our opinion is that its tiny 10 watt bulb does not put out nearly enough light to be effective. Both the Sunrise Alarm (right) and the EZ Wake (left) clocks use a 60 watt bulb that does put out an adequate amount of light.

Click here to see other types of sun alarm and dawn simulator clocks.