Solar lighting for gardens

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happyh
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Solar lighting for gardens

Postby happyh » Mon Oct 15, 2018 10:55 am

I know this subject has been discussed before but with modern technology advancing all the time I was wondering if any of you have views on the latest and best solar lights for gardens.
Our community has a communal pool and gardens with approx 30 mixed type lights.The electrical installation is 30 years old and needs complete overhaul.Rather that dig up many metres of underground wiring our electrician has suggested solar lights as a viable option.
All the ones we have seen so far look to be of a lightweight domestic variety with limited working life.
Do you know of any more industrial spec models?
Many thanks

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costakid
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Re: Solar lighting for gardens

Postby costakid » Mon Oct 15, 2018 3:25 pm

Have you tried the big retail sheds or somewhere like big Mat?

TorreDelAguila
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Re: Solar lighting for gardens

Postby TorreDelAguila » Mon Oct 15, 2018 5:52 pm

An electrical wholesaler would provide access to commercial items, as opposed to the lightweight domestic stuff.
Chris

Manchesteral
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Re: Solar lighting for gardens

Postby Manchesteral » Mon Oct 15, 2018 10:50 pm

I've tried those things that you stick into the ground, produced in China or Taiwan and last about 2 weeks !!

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White Horse
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Re: Solar lighting for gardens

Postby White Horse » Tue Oct 16, 2018 7:51 pm


happyh
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Re: Solar lighting for gardens

Postby happyh » Wed Oct 17, 2018 8:21 am

Many thanks for your replies.
We purchased 6 different lights through Amazon as trials.They all work ok and do seem to last till dawn but they are all very lightweight and don't look like they will last very long.We are looking for sturdy units with an anticipated lifetime in excess of 5 years,We understand that some regular maintenance and battery replacement will be required.
We are now going to approach some of the larger electrical and lighting distributors here in Spain and in UK.There must be a demand for such items in some industrial applications.
We will also consider just sourcing suitable well made small solar panels and fitting them to regular garden lights converted with suitable LED bulbs.
I'll update when we know more.
Further advice would be welcomed,

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gerrynag
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Re: Solar lighting for gardens

Postby gerrynag » Thu Oct 25, 2018 5:14 pm

I bought these solar security lights from Amazon and found them to be very good.
You can set them to come on at dusk and stay on all night.
They are very bright, having 28 leds each and very reasonable priced.
Bought 8 of them nearly a year ago and all still working.
This is the Amazon link:-

https://www.amazon.es/gp/product/B07171 ... _qh_dp_hza

TorreDelAguila
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Re: Solar lighting for gardens

Postby TorreDelAguila » Thu Oct 25, 2018 5:35 pm

Those last look a cut above the frail little ones* that have been around for some time, many of which just use one or two AA-sized NiMH batteries, and a tiny solar cell.
Those above use a 3.2v lithium battery, which will be better.

There has been a recent breakthrough in battery chemistry, the result being the LiFePO4 (lithium iron phosphate) battery. So good, its now used in Tesla cars and BYD single- and double-decer buses. Also now becoming available for small consumer devices, with its 3.2v ideally matched to running LEDs.
Lots of further info here: https://en.wikipedia.org/wiki/Lithium_iron_phosphate_battery.

* The cheap little ones suffer from battery degradation; the cheap solar panel gets damaged (cloudy) by sunlight UV; water ingress corrodes battery contacts, etc. Max. working life often just a year or so.
Chris


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