Tawg-profo thaum muaj xwm ceev, Crafted siv LED tshuab thiab eco-tus phooj ywg roj teeb, tsim los pab cov illumination thaum muaj xwm ceev. Feem ntau hu ua LED thaum muaj xwm ceev teeb, Lawv yog ib yam khoom uas LED tshuab.
Cov teeb no feem ntau siv nyob rau hauv densely populated pej xeem nyob rau hauv txhua lub neej txhua hnub. Lawv tawg-pov thawj thiab thaum muaj xwm ceev nta enable continuous lighting unaffected los ntawm lwm yam. feem ntau, Cov teeb no nyob twj ywm thiab yog activated xwb thaum muaj xwm ceev, Xws li cia li fais fab tuag.