Ring R291 24V 21W P21W SBC BA15D Double Contact Bayonet Light Bulb, Single

Hey, if you need a replacement bulb for your truck, trailer, or heavy machinery, grab this Ring R291.

It's a standard 24-volt, 21-watt bayonet bulb.

The fitment code is P21W, and it's the SBC (Small Bayonet Cap) style with a BA15D double contact base.

This means it's the common bulb used for brake lights, fog lights, indicators, and reverse lights on many 24V systems.

It's a single bulb, incandescent, giving off a warm white light.

It's road legal, so it's good for use on public roads.

The manufacturer part number is R291, and it crosses to other numbers like LLB291 and HB291.

Made by Ring, a known brand in vehicle lighting.

It's brand new, ready to pop in and get your lights working properly.

Don't get pulled over for a burnt-out light—keep a spare in the glovebox or just replace it now.

Simple, effective, does the job.