Auxbeam® LED Headlight Bulbs by Series | Brightest LED Kits

Frequently asked questions

• What LED headlight bulb series does Auxbeam offer?

  Auxbeam offers six main LED headlight bulb series — GX, F, Q, R7, S3 Pro, and D-PRO — each engineered for a different priority: maximum brightness, quick installation, RGB styling, CAN-BUS compatibility, or HID replacement.

  • GX Series (flagship): unique industrial design and the highest output in the lineup, from 25,000LM up to 40,000LM (GX-ULTRA 240W). Includes App-controlled Bi-Color models.
  • F Series: high-luminance bulbs (up to 24,000LM / 110W, F22) using line-control wiring for enhanced brightness.
  • Q Series: plug-and-play quick-install bulbs, including the 1:1 OEM-size Q26S and the fanless, wireless Q15.
  • R7 Series: RGB multi-color bulbs with remote control, usable as headlight, DRL, or fog light.
  • S3 Pro Series: built-in dual decoder, CAN-BUS error-free, with 12V and 24V versions for trucks.
  • D-PRO Series: LED replacement for D1/D1S/D1R HID bulbs.

  Browse all series on the LED Light Bulbs by Series collection page, or read the full guide: How to Choose LED Headlight Bulbs.

• What is the difference between Auxbeam GX, F, Q, and R7 series headlight bulbs?

  The core difference is installation philosophy and feature focus: GX is the flagship line built around unique design and maximum brightness (up to 40,000LM), F focuses on high lumen output with line-control installation, Q focuses on 1:1 plug-and-play quick installation, and R7 is the RGB color-changing line with remote control.

  
  
  
  Series
  Best for
  Max output
  Installation
  Signature feature
  
  
  GX
  Drivers who want the brightest, most premium look
  40,000LM / 240W (GX-ULTRA)
  Plug & Play or app-controlled models
  Unique design, Bluetooth App control, Bi-Color switchback
  
  
  F
  Maximum lumen per dollar
  24,000LM / 110W (F22)
  Line control (extra wiring)
  F15 is 20% smaller; F2 is mini size
  
  
  Q
  Fast, tool-free DIY upgrade
  36,000LM / 130W (Q50)
  Direct plug-in, 1:1 OEM size
  Dual turbo fans (Q50); fanless & wireless (Q15)
  
  
  R7
  Custom styling
  25,000LM / 70W
  Plug-in
  RGB remote control; headlight + DRL + fog light in one bulb
  
  
  

• Which Auxbeam LED headlight bulbs are the brightest?

  The brightest Auxbeam LED headlight bulb is the GX-ULTRA Series, delivering up to 40,000LM at 240W per pair in 6500K cool white — the highest output in the entire lineup.

  If GX-ULTRA is beyond your budget, the next brightest options are:

  • Q50 Dual Turbo Fans Series — 36,000LM / 130W ($99.99)
  • GX Plug&Play — 30,000LM / 120W ($129.99)
  • Q40 — 30,000LM / 120W ($79.99)

  All are available on the LED Light Bulbs by Series collection page.

• Which Auxbeam series is best for quick, plug-and-play installation?

  The Q Series is Auxbeam's dedicated quick-install line: Q26S bulbs are machined to 1:1 OEM halogen dimensions, and Q15 bulbs are fanless and wireless, so both fit stock housings and sockets without extra wiring.

  • Q26S — 22,000LM / 90W, 1:1 same OEM size, ideal for tight dust covers ($59.99).
  • Q15 — 18,000LM / 60W, fanless & wireless, also usable as fog lights ($39.99).
  • GX Plug&Play — 30,000LM / 120W, flagship brightness with true plug-and-play convenience ($129.99).

  Contrast: the F Series delivers enhanced brightness but uses line-control wiring, which suits users comfortable with a more involved installation. See the Quick-Install LED Headlight Bulb Collection.

• Are Auxbeam GX series bulbs worth the higher price?

  Yes — GX is Auxbeam's flagship series, and the price premium buys three things you won't find in budget lines: unique exterior design, class-leading output up to 40,000LM (GX-ULTRA 240W), and smart features like Bluetooth App control with dual-color switchback on the GX Bi-Color Smart and GX Smart Tune models.

  GX is also the most popular series in the lineup. Typical price positioning:

  • GX / GX Bi-Color — from $99.99
  • GX Plug&Play (30,000LM) — $129.99
  • GX Bi-Color Smart / Smart Tune (App + Bluetooth) — $169.99
  • GX-ULTRA (40,000LM / 240W) — $189.99

  If you want flagship brightness at a mid-tier price, the Q50 (36,000LM, $99.99) is the strongest alternative.

• How do I choose the right Auxbeam LED headlight bulb for my vehicle?

  Choose in three steps: (1) confirm your bulb socket type (H11, 9005, 9006, H7, H4, etc.) from your owner's manual or the Product Finder; (2) pick a series by priority — brightest = GX, best value brightness = F, fastest install = Q, RGB styling = R7; (3) check CAN-BUS needs — choose S3 Pro Dual Decoder if your vehicle is error-sensitive.

  • Scenario guide: How to Choose LED Headlight Bulbs — line-control (F Series) vs in-line plug-in (Q Series) recommendations.
  • Fitment lookup: use the Product Finder system (Year / Make / Model) on any product page.
  • Still unsure? Email customer@auxbeam.com with your Year/Make/Model and a photo of your stock bulb.

• Fan or fanless LED headlight bulbs — which should I choose?

  Choose fanless bulbs (Auxbeam Q15, X60) when your engine bay or headlight dust cover has tight space or you want zero moving parts and silent operation; choose fan-cooled bulbs (Q50 dual turbo fans, GX, F series) when you run sustained high output and need active heat dissipation.

  • Fanless advantages: no fan noise, smaller body, fully sealed against dust and water ingress — ideal for compact housings.
  • Fan-cooled advantages: higher sustained brightness at high wattage (e.g., Q50 36,000LM / 130W with dual turbo fans).

  Rough guide: under ~18,000LM, fanless designs hold up well; above 24,000LM, active cooling (fans or large heat sinks) is the norm across the GX, Q50, and F lines.

• Which Auxbeam LED headlight bulbs support RGB colors?

  The R7 Series is Auxbeam's RGB headlight bulb: 25,000LM / 70W with full multi-color control via an included remote, and it works as a headlight, daytime running light (DRL), and fog light in one bulb.

  The R7 Series RGB LED Headlight Bulb is the easiest way to switch your lighting look on the fly — no rewiring or extra controllers needed. For more RGB lighting across the catalog, see the RGB LED Lights collection.

• Fan or fanless LED headlight bulbs — which should I choose?

  Choose fanless bulbs (Auxbeam Q15, X60) when your engine bay or headlight dust cover has tight space or you want zero moving parts and silent operation; choose fan-cooled bulbs (Q50 dual turbo fans, GX, F series) when you run sustained high output and need active heat dissipation.

  • Fanless advantages: no fan noise, smaller body, fully sealed against dust and water ingress — ideal for compact housings.
  • Fan-cooled advantages: higher sustained brightness at high wattage (e.g., Q50 36,000LM / 130W with dual turbo fans).

  Rough guide: under ~18,000LM, fanless designs hold up well; above 24,000LM, active cooling (fans or large heat sinks) is the norm across the GX, Q50, and F lines.

• How do high-output bulbs like the 40,000LM GX-ULTRA manage heat?

  High-output Auxbeam bulbs manage heat through a combination of aviation aluminum heat sinks and active cooling — the GX-ULTRA (240W) and Q50 (130W) use high-speed fan designs, while mid-output models rely on fanless all-aluminum bodies.

  LED lifespan is primarily limited by junction temperature, not raw wattage — which is why every series pairs its output level with a matching thermal design rather than a one-size-fits-all body. Match the cooling style to your housing space .

• Will Auxbeam LED bulbs trigger dashboard error codes or flicker (CAN-BUS issues)?

  On error-sensitive vehicles, choose the S3 Pro Dual Decoder series — it has built-in dual CAN-BUS decoders and is engineered to be error-free on most dashboard systems.

  Decoding issues usually come from three causes: low current draw of LED vs halogen, pulsing DRL circuits, and vehicle-specific CAN checks. Fixes range from built-in decoders (S3 Pro) to external anti-flicker harnesses.

  Full troubleshooting: How to Solve Car LED Headlight Decoding Problems.

• Do Auxbeam LED headlight bulbs work with daytime running lights (DRL)?

  Yes — but DRL behavior varies by vehicle: some cars run DRLs at reduced voltage or through pulsed current, so the correct answer depends on your car's light working principle; Auxbeam documents the DRL-compatible scenarios and the R7 RGB bulb natively supports headlight/DRL/fog three-mode operation.

  • If your LED bulb doesn't light up in "AUTO" mode, it is usually a DRL circuit voltage issue, not a defect.
  • Check the full DRL and working-principle guide: Problems with the Working Principle of Car Lights.

• How does the R7 RGB remote control work, and can one bulb do headlight + DRL + fog?

  The R7 Series includes a dedicated remote that changes the bulb's RGB color on demand, and a single R7 bulb (25,000LM / 70W) can serve as headlight, daytime running light, or fog light.

  This one-bulb-three-roles design makes R7 the simplest RGB upgrade path — no separate controller or extra harness. See the R7 Series product page.

• Does Auxbeam offer free shipping in the USA?

  Yes — Auxbeam offers free shipping within the USA on all orders over $19.90.

  Every LED headlight bulb on this page qualifies with a single pair. 

• What is Auxbeam's return policy and warranty for LED bulbs?

  Auxbeam LED headlight bulbs are covered by a 2-year warranty, and most products on auxbeam.com carry the same 2-year warranty (clearance items excluded); a small number of interior bulbs carry a 1-year warranty, which is stated on the product page and included in the product documentation.

  Combined with the return policy, you get 30-day easy returns plus a 2-year warranty on headlight bulbs. For warranty claims, contact customer@auxbeam.com with your order number.