Question 1

Is the 500 watt lamp included? Will it be already clamped with the seal or do I  have to assemble tighten clamp down.

Accepted Answer

It comes assembled with the 500 watt lamp included.  However the lamp was broken in the 2 I received...  First one I sent back, the 2nd one I opened up and replaced the  bulb, reassembled and installed.  It worked fine once I installed it.

Question 2

Is it going with a specific niche for Inground pools ?

Accepted Answer

If you have an Pentair Amerlite niche sized for this unit it will install correctly. I don't know what niche brand you have. FYI see my review on the product page. By the way the manufacturer's warranty period is 60 days, but you can purchase extended warranty from Pentair. One reviewer received 2 units with the bulbs broken and sent one back in exchange and changed bulbs with the other one. I don't consider the unit a great price, but there are very few choices of pool lights on the market. Thus, limited supply means high prices. Typical manufacturing costs are marked up 300% for a final retail price. It is worth more like $60 to me.

Question 3

Could I use this light without installing it in the wall? I just want to drop it off the side.

Accepted Answer

For any product costing over $100 or so, I tend to research carefully and look at all angles to insure I am getting the correct product. One reason I can think of for pool lights to cost so much more than an ordinary light (like by a factor of 10) is liability. We are talking about putting electrical components in water and then telling people to jump in the water and splash around.  Hence, pool lights have to be over built to eliminate ANY possibility of electricity leaks into the water with its potential for electrocution. Not a small concern to be sure.  That means that if you are using any electrical component in a manner other than designed you are introducing unknown risks to the system. These could go from a simple matter like having it not last as long as designed to the danger of electrocution.  It really makes sense to use this the way their engineers designed it to be used. I am currently researching 12 volt lights as this greatly reduces the hazard even if there is a malfunction. There is a 12 volt lamp available but the transformer is installed in the niche behind the light. That means you are still running a 1120 volt line into the water. I am looking into something where the transformer is at the outlet and completely eliminating 1120 volts of electricity in the ater.

Question 4

Are these lights dimmable?

Accepted Answer

Yes, you could use these with a dimmer as long as your using a traditional  filament bulb no LEDS or florensents. I would do it if I had a need but dont. Now standard disclaimer because there is some internal circuitry which I do not have the schematics to this woUld be best answered by the MFG.

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Pentair78458100 Amerlite Underwater Incandescent Pool Light with Stainless Steel Face Ring, 120 Volt, 50 Foot Cord, 500 Watt

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