These are 12V 660 Lumen 30 4014 SMD LED Dual Filament Red Bulbs.
They will work with vehicles fitted with 12v or dual 6v batteries Positive Earth.
The bulbs are just 42mm long and brighter than the standard filament bulbs.They fill the lens with a lovely bright deep red colour and have great contrast between tail and stop light.
The 4014 SMD is a new, small but extremely bright LED.
LED bulbs come on immediately so provide an earlier warning that you are stopping.
These bulbs typically last up to 50,000 hours and are vibration resistant so no worries about having to replace them again anytime soon.
Suitable for many cars or motorcycles or applications that have the standard BAY15D P21/5W fitting.