 They are intended to create tiny points of light, and are suitable for decorating miniature models, small wreaths, and other similar situations in which even "midget" T1¾ lights may be too large.LED lights, which are encased in solid plastic rather than a hollow glass bulb, may be molded into any shape.Because the LED casts light in only one direction, the most common way LED lights are designed, even "plain" sets having some sort of crystal pattern to create refraction.