In article ,
"js.b1" writes:
Well the reviews on the latter say it isn't much good.
Decide how much lighting you want.
- SON re industrial sodium yellow light

SON (high pressure sodium) are a peachy, very warm white, but
don't have good colour rendering.

SOX (low pressure sodium) are the really yellow ones with no
colour rendering, but I doubt you'll find any (new) SOX
fittings, as the lamps are being phased out. (Somewhat ironic
given they're still the most efficient widespread light source
available.) Councils should have programmes to swap these out,
and you might be able to pickup some cheap, but make sure you
also get a lifetime stock of lamps, as they will become
unavailable (and they're expensive - I think there's only one
manufacturing facility for them still left).

- Fluorescent re conventional warm-cool white light
Decide how you want to control them.
- Single industrial photocell on wall switching the lot
- Individual photocell integrated into each light unit
Lights with integrated photocell provide better reliability at higher
cost, industrial photocell (box on a wall) are however quite reliable.
Ebay had some Coughtrie cbc IP65 photocell fluorescent lights for
£9-14, diecast aluminium opal diffuser, normally £45 normally as
proper industrial lighting gear. Nothing like them on there now
unfortunately as the price was excellent. Do not use the ASD bulkhead
photocell, they used to fail quite often.
Going for "real" IPx4 or IPx5 is a good idea re fit-n-forget. Go to
any electrical wholesalers and see what they have.

--
Andrew Gabriel
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