Product Notice *12V Low-Voltage Input *1 / 2 / 3 / 4 Feet G5 Bi-pin *Aluminum + PC housing *CRI80 100-110LM/W *Non-dimmable *Ballast Compatible *WW/NW/PW/Red/Green/Blue/Yellow Multi-Color available. Tube Dimension Length ---------- Wattage-----------Diameter 1feet------------ 4W----------------- 15mm 2feet------------ 7W----------------- 15mm 3feet------------ 10W---------------- 15mm 4feet------------ 12W---------------- 15mm