SMD, Rice LED and IP Ratings: Lighting Jargon Decoded
What the abbreviations on a fairy light box actually mean for brightness, colour and whether it survives a balcony.
Lighting listings carry a handful of terms that are rarely explained. Here is what each one changes about the product in your hand.
Rice LED vs SMD LED
Rice LEDs are the small bullet-shaped bulbs moulded into the wire — cheap, warm, and directional, meaning they look brightest viewed end-on. SMD LEDs are flat chips mounted on the strand; they spread light more evenly and are usually brighter for the same power. A rice strand sparkles, an SMD strand glows. For a backdrop seen from one angle, SMD is more even. For a strand wound through a jar or a plant, rice reads better.
Copper wire vs PVC wire
Copper strands are hair-thin and bendable, so they hold a shape when wrapped — good in jars, around stems, along a frame. PVC strands are thicker and spring back to straight, which is what you want for a long run that should hang cleanly.
IP ratings
Two digits: solids, then water. IP20 means no water protection at all — indoors only. IP44 survives splashing from any direction, which covers a sheltered balcony but not direct monsoon rain. IP65 handles low-pressure jets and is the first rating genuinely suitable for exposed outdoor use. If a listing does not state a rating, assume indoor.
Colour temperature in Kelvin
Lower is warmer. 2700K is the yellow of an incandescent bulb; 4000K is neutral; 6000K is the blue-white of daylight. Festive lighting is almost always 2700K to 3000K. A strand described only as "white" without a number is usually cool white.
Modes
The standard eight are combination, in-wave, sequential, slo-glo, chasing/flash, slow fade, twinkle/flash and steady on. They are the same eight on nearly every controller, so the count is not a differentiator.