LED bulbs for outside use?

knightstyle

We have two strings of lights that have small round bulbs, SES 15w clear.  They screw into holders clamped to the cable and there is a rubber gasket that seals onto the glass.  Are there any LED bulbs to replace them?   I cannot find out if the ones with plastic bases are OK in the rain.

grumbler

not all are plastic, e.g.

knightstyle

Ok thanks but I need round, golf ball shape.

grumbler

Is this really important? The difference in shape is very small.

knightstyle

The ones I have are very round and small I don't think the seal will work on bulbs like those.
I have tried similar bulbs but the depth between where the seal goes and the end contact is too great.