How far apart are the bulbs?

About two feet apart across the 48-foot strand. That is wider than most fairy-light strands, so expect a spread-out glow rather than a dense curtain of light.

Can I connect several strands end to end?

Techko's 24-bulb strand is not designed for end-to-end linking. Plan on a separate outlet or extension cord for each 48-foot run.

Are the bulbs replaceable?

On most Techko LED strands the bulbs are sealed into the sockets and not sold separately. If a bulb fails, the section usually has to be replaced.

Is it bright enough to light a patio?

It gives ambient accent light, not task lighting. It works well over a seating area or along a fence, but you will still want a porch light or lantern for real illumination.

Can it stay outside all year?

It is made for outdoor use, but the plugs and connections should be kept off the ground and out of standing water. In heavy snow or storm areas, take it down for the winter.