Part # NA700
Dimensions 6.75" L x 5" W x 5" D
Alternate Part #'s 79101900, SPX541Z1
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
Hi, I have a philips 300W 12V bulb in a Hayward Fixture SP-506, SP-555, SP-507. Is this the Led replacement?
Hi Jon, This bulb is not a LED bulb, there is not a LED bulb that is compatible with that light fixture.
how do I know which bulb to buy for my inground pool? It is a hayward
That will fit a Hayward Starlite, Duralite and Astrolite
how to install haywood in ground pool light bulb
the label on my pool light reads series 7883xx 7843xx watts 300 volts 12 bulb type R-40. Will this bulb replacement fit? Thank you
Yes you may use this bulb or the 12V Pure Colors LED Bulb
Do you sell the replacement bulbs for Pentair Spectrum Amerlite lamp type EYC P/N 79112400
Hi Steve, Yes we do carry bulbs for the Pentair SAM Light you may view these bulbs at our Pentair SAM Lights Parts Diagram page
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.
Is it 12 vdc or ac. Want to change my 120v to a low voltage system.
Reginald, this bulb operates on 12 VAC.
Can I replace myself?
Yes you can replace yourself as we have a great guide on How to Replace a Pool Bulb which will walk you through the process.
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 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.