... double color with low voltage and eco-friendly voltage:3.2--3.6 v current ... Shape; round led, oval led, straw hat led , helmet led , square led flat top led , bullet led, concave led, rectangle led square led3 Available Size; 3mm,5mm,8mm4 Lens type ... consumption, high intensity, uniform illumination8 Solid-state, high shock and vibration resistant9 Major reduction in power cost10 No RF interference11 ...