Pool Amerlite 400 Watt 15 Ft Cord 120 Volt - 78441100


Model # 78441100

By Pentair Pool Products

  4.5 Average  



Model # 78441100

Warranty 1 Year

Alternate Part #'s AMP-30-711, PEN78448100

Product Description

Pentair AmerLite

Designed for long life and long runs with minimum maintenance

Enhance your pool's beauty with the world's most reliable, most popular, underwater incandescent lighting. AMERLITE lights have been the world standard of reliability for underwater pool and spa lighting for over 40 years. It features a stainless steel shell, 8-3/8 in. prismatic tempered glass lens, and stainless steel face ring with unitension clamp. AMERLITE is expertly engineered to stand up to moisture, corrosion, and impact, and to provide optimum performance and safety for years to come.

Additional features include:

  • Corrosion-resistant stainless steel face ring with unitension clamp.
  • High-quality stainless steel shell for durability.
  • Clear or medium blue prismatic tempered lens for optimum light diffusion.
  • Tempered glass lens provides optimum diffusion.
  • Heat-sensing low water cut-off device for safety.
  • Optional plastic snap-on face rings available.
  • Optional snap-on lens covers available in red, blue, green, and amber.
  • Available in 100- and 300-watt, 12 volt models and 300- and 500-watt, 120-volt models.
  • One-year warranty


Click here for more Pentair Lights

Product Specifications

400 W
120 V
Cord Length:
15 ft.
Pool / Spa Type:

?     Asked on 3/17/2020 by Melvin Akal

Is the Pool Amerlite Direct current (DC) 12volts from Transformer120Volts AC current

A  Answered on 3/18/2020 by InyoPools Product Specialist Lennox H.

Hi, Melvin. The Amerlite Fixtures are all AC 120 and 12 volts. 

?     Asked on 2/9/2020 by JIM

can a LED bulb be used?

A  Answered on 2/10/2020 by InyoPools Product Specialist Lennox H.

Hi, Jim. Yes, they're LED Pool Light Bulbs available that can be used with this fixture. 

?     Asked on 4/23/2019 by Mark

I have and American Products R-400. The light works fine, but the frame around it is rotted. Can the frame/flange be replaced? The light is working fine. Water is also inside with the bulb.


A  Answered on 4/23/2019 by InyoPools Product Specialist Lennox H.

Hi, Mark. You can replace the Face Ring Assembly S.S. - 79110600, the Unitension Wire Clamp Assembly - 79111000 along with the Lens Gasket OEM - 79101600, Generic - 791016 or Heavy Duty Silicone - LPL-G-P. However, you can also replace the entire Pentair Amerlite Pool Light Fixture

?     Asked on 7/29/2018 by David J VanWaardenburg

I have an American Products Company Model R-400, 400 Watt, 120 Volt, CN-5 type fixture that has rusted and shorted out. Can I use this product as a replacement? Size seems to be the same. Let me know and I will purchase. Thank you.

A  Answered on 8/2/2018 by InyoPools Product Specialist Lennox H.

Hi, David. Yes, you can use this Amerlite 400 Watt 15 Ft Cord 120 Volt - 78441100 as a replacement. 

?     Asked on 7/10/2018 by


A  Answered on 7/10/2018 by InyoPools Product Specialist Lennox H.

Hi. We do have the Amerlite 400 Watt 50 Ft Cord 120V - 78448100 available. 

?     Asked on 8/5/2017 by Dave Binder

I need to replace a Pool Star, PHL-100-5 (trim ring is 10 inches OD.) The trim ring holds the fixture in the pool cavity with a clip at the bottom and a screw at the top of the trim ring. What replacement fixture do you recommend? Thanks.

A  Answered on 8/9/2017 by InyoPools Product Specialist Lennox H.

Hi, Dave. You can use the Pentair Amerlite Fixture as a replacement for the Purex Pool Star Light Fixture. 

?     Asked on 8/25/2016 by

Can I replace a R40 120 volt 400 watt bulb with a 300 watt bulb?

A  Answered on 8/25/2016 by InyoPools Product Specialist Scott W.

Yes, you won't hurt it going to a 300W bulb. The Amerlite has the same housing, just different lights.

?     Asked on 8/16/2016 by Dan Rish

Im only getting 82 AMPS at the CN-5 fixture housing but 120 AMPS at the junction box where the cord is attached to the power source. Can I just replace the fixture housing without replacing the cord?

A  Answered on 8/19/2016 by InyoPools Product Specialist Lennox H.

Hi Dan, A new light fixture will include the cord, there is no to purchase a fixture without the cord.

?     Asked on 6/26/2016 by Ron Novak

i need a 500 watt replacement unit for model number CN-5 Fixture Housing , wet niche type , fresh water only. This is a ingroun fox pool.

A  Answered on 7/2/2016 by InyoPools Product Specialist Lennox H.

Hi Ron, I was unable to locate any info on a CN-5 pool light. If you can provide the model number of the pool niche we can find out which light will work as a replacement or you can compare the physical of this light to the one you have.

?     Asked on 2/24/2016 by William Fowler

My bulb burned out in my R400BCL light fixture which was a 400W bulb. I went to the local commercial pool supply store and they only had 500W bulbs available. He said it would work and that they sell them to the pool companies all the time as a replacement bulb. I would like to know if this is correct before I install the bulb.

A  Answered on 2/29/2016 by InyoPools Product Specialist Lennox H.

Hi William, You can use replace a 400 watt bulb with a 500 watt bulb. I would also recommend replacing the light fixture lens gasket, so that water does not seep into the light fixture.

?     Asked on 9/16/2015 by Chris

My 25 year old housing developed a pin hole (rust), partially filling with water and shorting the bulb out. Can I simply connect the new unit to the old wiring, or must I replace the old wiring with the new wiring?

A  Answered on 9/17/2015 by InyoPools Product Specialist Hector F.

You would need to replace the entire light fixture including the wiring.

?     Asked on 5/23/2015 by Larry Voigt

Is this light a proper replacement for an American Products R-400 BC? Will it fit properly in the existing CN-5 fixture? How about the 12-volt model?

A  Answered on 5/23/2015 by InyoPools Product Specialist Patrick P.

Hi Larry, You would need to compare against these Amerilite Dimensions and if they match up then this light would work for you.

?     Asked on 3/16/2015 by Raul

Does it come with the light bulb?

A  Answered on 3/17/2015 by InyoPools Product Specialist Robert M.

Hello Raul - The Pentair Amerlite does come with a bulb.


Est. Repair Time

Less than 1 hr

Tools Needed

Screwdriver, Pliers, Wire strippers

Existing pool light did not work

Written on 5/23/2020 by Guest

Existing pool light casing leaked and filled with water. Turned off power to light at switch and breaker. Removed existing light by removing single retaining screw (did not drain pool).

Cut existing light wiring at back of housing and attached new light wires by twisting wires together and wrapping in electrical tape. Pulled old wire out at junction box which brought new wire through. Replaced bulb with LED bulb. Installed new light by securing single retention screw.

Were these instructions helpful? 


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