There are many types of Christmas lights to choose from when working with a light installer. The main types available for outdoor lighting are dome, LED, incandescent, and C9, and your lighting professional’s choice will depend on the location and overall design. 

C9 lighting is typically the most expensive option, ranging from $15 to $70 per 25-foot strand. These usually have fewer bulbs per strand, so you might need more than expected to cover a large area. Dome lighting is usually the most cost-effective option, ranging from $6 to $15 per 25-foot strand. These bulbs are smaller and rounder than other options, creating a softer look.

How many string lights can be on one outlet depends on a number of varying factors, including the total wattage of your circuit, the type of lights, the energy needs of the lights, and cord specifications. It’s better to play it safe here to protect your circuit, so figure out the max wattage of your circuit, compare that to the lights, and move on from there. Generally speaking, LED string lights require less energy than incandescent bulbs, translating to a higher number of lights per circuit. 

If you need to visually inspect your Christmas lights to determine which are good and which need replacement, there are a few things to look for. First, look for discoloration, such as a dark spot or two on the inside of the glass. The spot is an indication of a burnt filament. Also, look for missing filaments, cracked bulb glass, and broken sockets.

Yes, if your roof is in stable condition, you should be able to hang Christmas lights from the eaves. Hang Christmas light directly from the eaves for best results, using light clips or an alternative type of adhesive. When installing lights on your eaves, be sure to work carefully and avoid adding too much weight or pressure to them.