🚀 New launch promo — 10% off orders over $300. Use code LAUNCH10
Bubbles Supply
Not sure which part you need? Upload a photo and we'll find it. →
8' 12V Light Harness 21089 - Bubbles Supply

8' 12V Light Harness 21089

Part #: 21089

$57.32
In stock — ships today
Qty
🔒 Secure checkout↩️ 30-day returns✅ 1-year warranty
Add to B2B order list

Not sure this fits?

Send us a photo of your old part — we'll confirm the right replacement before you order.

Upload a Photo

Also replaces

21089
1-year warrantySame-day ship before 3pm CTPerfect Fit Guarantee30-day returns

About this lighting

The Balboa 8' 12V Light Harness 21089 is a premium OEM replacement lighting assembly designed for Balboa-equipped hot tubs and spas. This complete 8-foot harness features a convenient twist-lock connection with included bulb and reflector, operating at standard 12V for safe, reliable underwater illumination. The generous 8-foot length provides flexible routing options for most spa configurations.

Built to exact Balboa specifications, this genuine OEM harness ensures perfect compatibility and long-lasting performance. At Bubbles Supply, we guarantee an exact fit for your spa lighting system, backed by our comprehensive 1-year warranty and same-day shipping on in-stock items. The twist-lock design simplifies bulb replacement and maintenance. Before ordering, verify your existing harness length and voltage requirements to ensure proper fitment with your spa's lighting circuit.

Exact part number

21089

Save this for ordering or warranty claims

Also known as / Replaces

This part replaces or is interchangeable with:

  • 12V spa light harness
  • 21089
  • 8-foot light harness
  • Balboa light harness
  • twist-lock light assembly

Looking for an older part number? Check our supersession lookup tool

Technical specifications

Voltage
12V

Common symptoms this part fixes

If your spa is showing any of these signs, this part is likely your fix:

  • Spa light is completely dead
  • Bulb flickers or cuts in and out
  • Harness connector corroded or burned at socket
  • Light works intermittently and can't be reset
  • Water intrusion into existing light assembly

Not sure if this is your problem? Try our diagnostic centre or .

Before you buy — quick checklist

  • Confirm your existing harness is 8 feet — measure from the control board connection to the light niche before ordering
  • Verify your spa runs a 12V lighting circuit, not 120V
  • Check that your light niche accepts a twist-lock style connector
  • Inspect the control board socket for corrosion — a damaged socket will need to be addressed separately
  • Confirm this is a Balboa-powered spa; non-Balboa control systems may use different harness pinouts

Reading the checklist now prevents 90% of returns. Worth the 60 seconds.

Install difficulty: Medium — Some experience neededTypically 30–60 minutes

What's in the box

  • 8' 12V light harness
  • Bulb
  • Reflector
  • Twist-lock connector

If your order is missing any items listed above, contact hello@bubblessupply.com within 48 hours of delivery.

Warranty

1 year manufacturer warranty against defects

Covers manufacturing defects. Does not cover improper installation, normal wear, or accidental damage.

Warranty claims: warranty@bubblessupply.com

Perfect Fit Guarantee

Ordered with our help and the part doesn't fit? Contact us before installation. We'll resolve it with an exchange, replacement recommendation, or return approval.

Learn about our Perfect Fit Guarantee →

Shipping

We ship across the US and Canada. US orders ship from our US warehouse to US customers; Canadian orders ship from our Canadian warehouse to Canadian customers — no cross-border shipping, no surprise duties. In-stock orders placed before 3pm CT ship same day. Standard shipping $9.95 flat rate. Free shipping on orders over $200. Express options available at checkout.

Returns

30-day hassle-free returns on unused parts in original packaging. Contact us before returning to receive your RMA number.

Frequently asked questions

Check the Compatibility section above to confirm fitment for your spa brand and model. If your model is not listed, use our fitment selector at /pages/find-my-part or ask our parts AI for a personalized recommendation.

In-stock orders placed before 3pm CT ship the same day. You will receive tracking information by email as soon as your order ships.

We accept returns within 30 days of delivery for unused items in original packaging. Email returns@bubblessupply.com with your order number to start a return. Installed electrical parts cannot be returned for safety reasons.

Yes, all new parts come with a 1-year warranty against manufacturing defects. Warranty does not cover damage from improper installation or normal wear and tear.

Customer reviews

AI Fitment Assistant

Tell us your spa model and we will confirm this part fits before you buy.

🔒 Secure checkout · SSL encrypted·🇺🇸🇨🇦 Serving the US and Canada·↩️ 30-day hassle-free returns·📦 Same-day fulfillment