Part # NA700
Dimensions 6.75" L x 5" W x 5" D
Alternate Part #'s 79101900, SPX541Z1, 57-555-1010, APC12300M, ELER40FL300-12V, HAL104040, SPP-1271
POOL & SPA REPLACEMENT LIGHT BULBS
Specially designed to keep your pool well lit this season. Our bulbs are made with thicker filaments and glass to last longer. Heavy duty heat shielding prevents damaging heat build-up and prolongs the bulb's life.
* Dimensions may vary slightly
POOL & SPA LIGHT LENS GASKETS
Remember when replacing your pool or spa light bulb it is very important to replace the lights lens gasket. After long use, heat, and harsh chemicals, the old gasket is probably compressed, and if it doesn't fail immediately, it might fail before the next bulb change. Click here for Pool Light Lens Gaskets
For additional pool & spa light bulbs
Will this light bulb work on a Hayward Astrolite?
Yes, this bulb does work on Hayward Astrolite, as well as other makes and models of pool lights. The most popular of these lights being Pentair Amerlite, Hayward Starlite, Haward Duralite, and Sta-Rite SwimQuip Lights. Click here for a full listing of our >Pool Light Bulbs & Spa Light Bulbs.
My bulbs burn out after a few hours of use. What would cause this?
My first guess would be to check the voltage. If you are getting anything more than 12v to the light, it will run hotter and burn out quicker.
Will this Bulb fit and work with Hayward Astrolite Model # sp0581s15. I think it does but want to make sure.
Hello Orlando, yes the Seit NA700 bulb is compatible with the Hayward Astrolite fixture. I recommend confirming your voltage is 12 volts before placing the order.
(5 out of 5 stars) Finally a reliable bulb
Reviewed By: Scott from Fire Island Pines, NY ()
After four bulbs (the kind that cost $12 on the internet) in four weeks provided and installed by our pool guy (who will likely charge us $50 for each installation), I decided to do this myself. First I tested that our fixture was properly supplying only about 12 volts. Then I ordered the bulb for next day delivery. It arrived on schedule and only took me about a half hour to install. Voila! The pool looks beautiful at night and we hope not to bother with this until at least next season.
(5 out of 5 stars) Easy Bulb Replacement
Reviewed By: Inyo Customer ()
This light was an exact match for my Hayward Pool Light Model SP058115. It worked great and was so much cheaper than replacing the entire light underwater system. You just removed a few screws and replaced the bulb. I also got the gasket Astrolite LensGasket SPX0580Z2 (Generic). It was really cheap insurance to replace the gasket sealing the water out when you replace the pool bulb. This job took very little skill to accomplish myself, and I am very happy to have saved myself hundreds of dollars by doing it myself.