I can't really rate the "thickness" or "transparency" of this cable (that was the benchmark) This cable works great for lighting. I immediately used 100ft for our outdoor security lighting. Very flexible jacket. 3 conductor 18 AWG red, black and yellow. Conductor - stranded copper. I used yellow for ground, red for neutral, black for line (AC) when used for DC, yellow can be your trigger/signal 😉 This cable fits nicely in a PG9 cable clamp. Great value for money. I wish it was available in a 250ft continuous length or on a spool. I have already used 2 batches of this cable!