Son Bulkheads

[gcx51]

I wish to change 2 outside lights for Son bulkheads.

Could somebody please tell me what the light output will be from a 50w Son lamp and a 70w son lamp compaired to a normal light bulb. i.e with compact low energy lamps an 11w lamp gives = 60w of light

Cheers
Rob

 

[GaryMo]

A 70w SON will give a good spread of light but it'll be yellow, very yellow!

Why not look at metal halide fittings for a nice white light, again, they'll be much brighter than a 50w halogen lamp.

Be aware that both the above lamps have a startup time of a couple of minutes to full brightness. Also if you switch them off they won't be ready for switching back on for around 4-5 minutes (just in case you're using a PIR).

I've yet to see an 11w CFL give a light output as good as a 50w halogen, never mind 60w.

 

[Lectrician]

Hugely depends on what use it will have.

SONS most certainly have their place.

What are is it lighting? Alley, car park etc etc...

 

[streetlighter]

If you use metal hailide like the CDM-TT lamps be prepared to wear sunglasses in the dark as they are very bright lamps and the run much hotter than ordinary SON-T lamps.

 

[Lectrician]

Why SON-T? thats a little specific!

SON-T verse SON-E - any takers? Little quiz

 

[RF Lighting]

I'm gonna leave this for one of the youngsters, but I know

Then there is also

SON-E [E]
SON-E

 

[sparkydude]

Son T = Tubular shaped glass envelope

Son E Elliptical shaped Glass envelope


Wheres my prize ???


Nick

 

[gcresser]

internal ignitor
[E] external ignitor and much cheaper

 

[gcresser]

If you use metal hailide like the CDM-TT lamps .......

Or there's CDO-TT.............

Hey streetlighter, who do you work for?

 

[Lectrician]

internal ignitor
[E] external ignitor and much cheaper

But fitting a little more!

We have a warehouse with a mix of fittings from same manufacturer. They are a mix of 250 SON and SON [E]. Different batches bought during a switch of manufacture.

It is easier to purchase lamps with internal ignitors. These actually work in a fitting with an ignitor in it - The lamps ignitor glows red hot an fails, turning the lamp into a SON[E].

This doesn't work with 70watts - tried and failed!

It was on guidance from the manufacture that we tried this, as we complained (trying for some money off) due to different switch gear on same staged delivery.

Metal halide is good, but the re-strike time is too long (not too bad in a freezer - the cold helps the re-strike). Must be used behind a glass cover, not plastic. Seen several people replace son gear tray with metal halide rather than change the fitting.

Every type of light has it's place. SON looks great on old buildings, and metal halide good on new.

A few years ago I did some lighting for a posh house/castle......

 

[GaryMo]

A few years ago I did some lighting for a posh house/castle......

That looks great!

 

[Lectrician]

And a warehouse loading bay last year....

NOTICE: SON verse Metal Halide Each has a place.

 

[Steve]

And a warehouse loading bay last year....

NOTICE: SON verse Metal Halide Each has a place.

Also note metal halide being used in a controlled low-temperature environment!

 

[streetlighter]

Ive seen the CDM lamps fitted in place of ordinary SON-T lamps on a scheme where all the Phosco lanterns had plastic shades needless to say most of them have large holes melted in them from the heat of the lamp.
Getting on the SON-E/I lamps subject ive been to columns where a well know lighting maintenance contractor has fitted SON-T lamps instead and as there was no ignitor in the circuit those lamps where out for a while.

 

[gcx51]

Thanks for all the replys!

I wish to illuminate a 8m x 4m smoking area in a car park next to a nigh club

Just wondering what the equilivent output is compaired with a gls lamp

cheers