Platinum Retrofits is a new series of LED bulbs. using only Osram LED elements and other high quality components. The products are designed in Poland by M-Techs product development team. They differ from other similar products in their intelligent technology. which prevents the LED element from overheating and, if necessary, lowers the supply voltage to achieve the optimum operating temperature. INTERIOR USE ONLY! - suitable for car interior lighting Technical information: Socket T20 W21 / 5WLED type 15 x SMD2538Color white whitePower 3.3 WLight efficiency 255 lmVoltage 12-24 with VCANBUS error message remover