12V

LION Automotive Festoon 12V 10W Incandescent Light Bulb Clear 2Pcs

LION  |  SKU: LT039W14
Regular price $8.25
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Light Bulb Fittings

The light bulb fitting is the part of the bulb that connects it to the socket of a light fixture.

Check fitting guide

Colour Temperature

Colour temperature is measured in Kelvin (K) – the lower the number, the warmer the white light appears, while a higher Kelvin will appear cooler. Colour temperature generally ranges from 2700-3300K (warm) to 3300-5300 (cool) – and 6500K is daylight.

Check details of colour temperature

Equivalent Wattages Between Different Light Bulbs

As long as the technology developed, a LED light bulb can only use 8 watt power but light up similar brightness when a incandescent light bulb uses 60 watt power. There is equivalent wattage between different light bulbs. To stop making confuse, you need to know what wattage equivalent to each other. See the table attached as below.

Check table chart

⚠️ Important: This is a 12V low voltage bulb and requires a compatible 12V transformer or power supply. It will not work with standard 240V mains voltage.

This LION automotive festoon pack contains two clear incandescent bulbs with metal contacts at both ends. The LT039W14 bulbs are rated 12V and 10W for interior/side lamp applications in vehicles and lamp holders requiring this exact replacement specification.

In a compatible vehicle, the 12V vehicle circuit supplies power; a separate mains transformer is not normally part of installation. Each bulb is rated 10W, giving a combined rated load of 20W if both operate together. Match the original lamp's overall end-to-end length, glass diameter, end-cap shape, contact spacing, voltage and wattage.

 

Key Features

  • LION LT039W14 automotive festoon bulbs
  • Two bulbs per pack
  • 12V and 10W per bulb
  • Clear glass with visible filament
  • Double-ended metal contacts
  • Applications: matching interior and side lamps
  • Exact vehicle and holder compatibility must be checked

 

Specifications

  • Brand: LION
  • SKU: LT039W14
  • Type: Incandescent Light Bulb
  • Shape: Automotive Festoon
  • Fitting: Double-ended Festoon
  • Voltage: 12V
  • Wattage: 10W per bulb
  • Pack Quantity: 2 bulbs
  • Combined Load: 20W when both bulbs operate together
  • Finish: Clear
  • Applications: Interior / side lamps requiring this specification

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Frequently Asked Questions

Can these LION 12V 10W festoon bulbs be dimmed?

Dimming compatibility is not specified on the supplied packaging. Use only the vehicle's approved lamp and control arrangement for this exact replacement. Do not assume compatibility with every interior-light dimming or fade circuit, and do not add a household dimmer. A compatible vehicle circuit supplies the 12V power; never connect these bulbs directly to 240V mains.

Will these festoon bulbs fit any interior or side lamp?

No. Match 12V and 10W to the vehicle instructions, and compare the original bulb's overall end-to-end length, glass diameter, end-cap shape and contact spacing. Festoon bulbs come in different sizes, and no dimensions or standardised cap code are confirmed for this listing. Do not force a bulb into the holder or substitute a higher wattage than permitted. Switch off the circuit and let the bulb cool before replacement.

How many bulbs are included, and what distinguishes a festoon bulb?

This pack contains two clear filament incandescent bulbs. Each is rated 12V 10W, so the combined rated load is 20W when both are operating. A festoon bulb has metal contacts at opposite ends rather than a screw or bayonet base. The packaging lists interior/side lamps, but does not establish universal vehicle compatibility, rated life or a specific colour temperature.