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SAINSBURYS LINEAR R7 78MM in store only 75p instore @ Sainsbury's Fulham Wharf
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SAINSBURYS LINEAR R7 78MM in store only 75p instore @ Sainsbury's Fulham Wharf

13
Posted 1st FebAvailable: LondonEdited by:"miaomiaobaubau"

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Many@Sainsbury's Fulham Wharf
Good replacement for garden halogen but do not expect same amount of light, for work light is perfect
code: 5 057740 431255
LED BULB
806 LUMEN 7w
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13 Comments
Maybe stick bulb in the title
Would also be useful to state 'LED' and the number of Lumens (light output)
I'm near sure these R7's come in two different lengths
Got some of these work well not to bright
dogsballs01/02/2020 14:09

I'm near sure these R7's come in two different lengths


Still @£7 the other one. The ideal as I got plenty to replace and nearly double the brightness than this one.
What is this ??

Kindest regards
dogsballs01/02/2020 14:09

I'm near sure these R7's come in two different lengths


Correct. If I'm not mistaken the other one is 118 mm.

I had to figure this out as our halogen garden bulb went for the first time recently. I think the majority of halogen garden lights are this 78 mm size, at least ours was. It wasn't a case of choosing, they're standard fitments so 118 wouldn't have fit in ours.

For something like a security light on the top of your garage I think 800 lumens would probably be fine. Just don't expect it to illuminate your entire garden if it's a decent size.

Equivalent halogens are about 2000 lumens on average but use about 20 x as much power. I did a rough calculation of a halogen costing a k/w every 8 hours. Roughly a k/w costs 20p depending on your energy plan. With mine only being a security light that's on for probably 5 minutes or so a day on average I figured LED wasn't worth the extra cost for the bulb and went for another halogen, however if you use it for a constant garden light (or similar) and spend a lot of time there in the evening, that cost would add up quickly so LED would be the way to go. LED's should also last much longer too but we're only talking pence for halogens so wasn't worth factoring in.

This is an absolutely fantastic price for what it is by the way, if this was local to me I'd be tempted to swap out the virtually new haolgen bulbs I brought.
firstofficer01/02/2020 18:35

What is this ??Kindest regards


LED bulb for things like outdoor security lights/garden lights etc. R7 is a specialist fitment.
I bought an ebay version of this for an uplighter, it was really dim.

I put the halogen bulb back in again
Brilliant price. Were there many left
rapid8501/02/2020 19:12

Roughly a k/w costs 20p depending on your energy plan.


That sounds rather high, even on a variable tarrif it's possible to get under 16p/kwh

Edit: That is of course assuming the mainland, if you on one of the outlaying islands or a remote area I guess it might be more.
Edited by: "dragon2611" 1st Feb
dragon261101/02/2020 20:59

That sounds rather high, even on a variable tarrif it's possible to get …That sounds rather high, even on a variable tarrif it's possible to get under 16p/kwhEdit: That is of course assuming the mainland, if you on one of the outlaying islands or a remote area I guess it might be more.


'Roughly'. I'd say 80% is within that semantic. That's not even getting into the realms of people not getting the best deal etc or a policy favouring cheaper gas vs more expensive electric.
Edited by: "rapid85" 1st Feb
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