Bulb P21/5W 24V BAY15d, aftermarket

For the lamps of JCB and other construction machines: bulb P21/5W 24V, an aftermarket part.

P21/5W is a twin-filament 21 W and 5 W bulb with a BAY15d double-contact bayonet base, giving the tail (5 W) and brake (21 W) light in one lamp. This bulb is for 24 V systems. Its base pins sit at different heights, so it fits only the right way round. The bulb voltage must match the machine's electrical system: a 12 V bulb blows at once on 24 V, and a 24 V bulb glows very dimly on 12 V. The bulb is chosen by its standard designation: type, voltage, wattage and base. The bulb comes new.

Specifications

Compatibility

Other parts are in Bulbs.

Fitting

Before changing the bulb, switch off the circuit and let the lamp cool. Push the bulb fully into its holder, and never touch the glass of halogen bulbs with bare hands. After the change, switch the lamp on to check it works and that the lamp body seal is in place.