On Thu, 31 Aug 2017 14:29:03 -0700 (PDT), "
> wrote:

>On Thursday, August 31, 2017 at 11:59:14 AM UTC-5, Sheldon wrote:
>> On Wed, 30 Aug 2017 21:30:46 -0700 (PDT), "
>> > wrote:
>>
>> >The bulb has not burned out in the 10 years it's been up but
>> >I have had to replace electronic eye twice. They're readily
>> >available at Lowe's but for some reason Home Depot does not
>> >stock them.
>>
>> Depends what kind... an LED fixture can last more than 15 years...
>> some of the older gas filled bulbs are no longer made. The LED models
>> will save the price of the fixture in electricity within the first few
>> months. so when they finally die you'd be so far ahead it'd be no big
>> deal to buy a new fixture. Mine is an LED, the electronic eye turns
>> it on at dusk and off at dawn. I have the 70 Watt model, emits
>> tremendous light:
>> http://www.superiorlighting.com/70_W...101caal068.htm
>>
>I *think* mine is a sodium vapor, but don't quote me.
>>
>> Something to know about LED lighting, the fixture must be wired with
>> the proper polarity or there will be problems, could be why your
>> sensor isn't lasting. I had an electrician mount all my LED fixtures,
>> I've had no problems.... in the end it costs less to have electrical
>> work done correctly. The electrician I use is licensed and is a
>> Master Electrician. His rates are very fair, he charged $70 to
>> install that fixture, included all the wiring and installation... I
>> don't think I'd want to climb up there for $70 (about 30'). I don't
>> like those kind of heights.
>>
>When I had my present fixture installed it was when I was having a
>an addition built onto the back of my house. It was a licensed
>electrician that did all the wiring plus he wired this outdoor
>light.

The sodium vapor bulbs emit a pale bluish light.
LEDs emit a white light or warm pale yellow light.
I like the light from sodium vapor bulbs but they are now difficult to
find.