Typical diameters are T12 or T38 (1 + 1 ⁄ 2 in or 38 mm) for larger, often less efficient lamps, T8 or T26 (1 in or 25 mm) for smaller and often energy-saving lamps, and T5 or T16 (5 ⁄ 8 in or 16 mm) for very small lamps, which may even operate from a battery-powered device.

Light bulbs for automobiles are made in several standardized series. Bulbs used for headlamps, turn signals and brake lamps may be required to comply with international and national regulations governing the types of lamps used.

SYLVANIA - 921 T-16 W16W ZEVO LED White Bulb - Bright LED Bulb, Ideal for Interior Lighting - Map, Dome, Trunk, Cargo and License Plate (Contains 2 Bulbs)

SYLVANIA ZEVO LED bulbs deliver a brighter, whiter, sharper light. As easy as changing a light bulb, you can have improved performance and safety for interior and exterior applications. World-class manufacturing and high-quality materials guarantee a lifetime warranty on your ZEVO bulbs.

When it comes to T16 Plug-In CFL & LED Light Bulbs & Lamps, you can count on Grainger. Supplies and solutions for every industry, plus easy ordering, fast delivery and 24/7 customer support.

BulbConnection.com offers the Sylvania Automotive SYLVANIA ZEVO 921 T-16 W16W White LED Bulb, (Contains 2 Bulbs) 921LED.BP2 replacement bulb with a Sylvania Automotive product code of 921LED.BP2-disabled at wholesale direct prices.

HIDCONCEPT.COM has 921 T15 LED wedge light bulbs for your cars and SUVs. LED 921 bulbs would improve the light output and will stand out from other cars on the road. Free standard shipping for over $20 in the U.S.

Length: 11.5" / 292.10mm Width: 2" / 50.80mm Height: 2" / 50.80mm Diameter: 1.8" / 45.72mm Add Info: This lamp passes the Toxicity Characteristic Leaching Procedure (TCLP) as set forth in ANSI standard C78.LL 1256-2003. Start Method: S106 …

Headlight Bulbs (HID) Headlight Bulbs (LED) Fog Light Bulbs (LED) Sealed Beam Conversions. Nokya; Autopal; Headlight Bulbs (Moto) Ultra White (Powersport) Hyper Yellow (Powersport) Clear (Powersport) Mini Bulbs (Halogen) 168, 194 (T10) 921 (T16) 1156, 1157; 3156, 3157; 7440, 7443; Dome; Mini Bulbs (LED) 168, 194 (T10) 921 (T16) 1156, 1157; 3156 ...