Balboa Water Group
Balboa Water Group 12V Spa Light Bulb | 21091
Balboa Water Group 12V Spa Light Bulb | 21091
Free ground shipping once your order reaches $99. Under $99, shipping is a flat $9.99.
In-stock orders usually leave in 1 to 2 business days, and faster delivery options appear at checkout.
Manuals, spec sheets and warranty for Balboa Water Group


Balboa 12V spa light bulb
Swap a burned-out spa light for a fresh Balboa 12 volt bulb, part 21091.
It is listed as a 12 volt light bulb, with reference 21019. Match the voltage and bulb style to your old bulb. Questions? Call 631-678-6506.
How to choose and fit the 12V Spa Light Bulb
Turn the spa power off, then pull out the old bulb.
Read the voltage on it and confirm it says 12V, and note the reference 21019 if it appears.
Fit the new bulb and test. Call 631-678-6506 if the base or size looks different.
Works on
12V Spa Light Bulb questions and answers
What voltage is this bulb?
It is listed as a 12 volt bulb.
What does 21019 mean?
It is a reference shown in the listing. Compare it to your old bulb or light, or call 631-678-6506 to check.
Is it in stock?
Stock changes often. If it shows as unavailable, call 631-678-6506 and we will check.
Will it fit my spa?
Confirm the part number and size against your current part, or call 631-678-6506 and we will help you check before you order.
