Diode Dynamics 3157 HP24 Switchback Dual-Color Turn Signal LED Bulbs

Features

• Direct replacement for factory 3157-size incandescent front turn signal bulbs

• Adds cool white running light + amber turn signal functionality

• High-power Samsung LEDs arranged around the bulb

• No yellow tint when switched off for a clean, modern look

• Durable full aluminum housing for maximum heat dissipation

• Non-polar and CK compatible

• Plug-and-play installation in minutes

Overview

Upgrade your vehicle’s turn signals with the Diode Dynamics 3157 HP24 Switchback LED Bulbs. Engineered with 16 amber chips and 8 white chips, these bulbs shine 6000K cool white when headlights are on, and automatically switch to amber when signaling. Once the signal stops, they switch back to white for a sleek and modern “switchback” effect.

At 410 lumens of output, the HP24 delivers nearly double the brightness of factory bulbs. Built with constant-current circuitry, transient suppression, and an all-aluminum housing, these bulbs are designed for long-lasting, flicker-free performance.

Brightness & Reliability

• 410 Lumens – about 2x brighter than factory bulbs

• Constant-current circuitry prevents flickering

• Aluminum housing ensures efficient cooling and long life

• Backed by Diode Dynamics’ 3-Year Replacement Warranty

What’s Included

• Quantity: Single Bulb or Pair

• Warranty: 3-Year Warranty

• Return Policy: 30-Day Return, No Restocking Fee, 100% Satisfaction Guarantee

Fitment

• Bulb Size: 3157

• Application: Front Turn Signal (clear reflector lens only)

• Electrical Compatibility: Requires hyperblink fix (resistors or flasher module)