The R7 halogen lamp is a long shaped bulb that is normally used in floor lamps, wall fittings and garden flood lights. There are two sizes available in 78mm being the smallest, and 118mm the largest. Wattages range from 100w to 500w and the average lifetime of an R7 is around 3000 hours.
Untrue …Note in UK outside lights limited to 150 watt without planning.
Note in UK outside lights limited to 150 watt without planning
Yes, untrue relating to planning issues; but apparently true relating to building regs (In England and Wales anyway!) and efficiencyUntrue …
Seems changed in 2021 so can't use quartz lights any more it seems, it now says6.60 Where installed in a new or existing dwelling, fixed external lighting should have both of the
following controls.
a. Automatic controls which switch luminaires off in response to daylight.
b. If luminous efficacy is 75 light source lumens per circuit-watt or less, automatic controls which switch luminaires off after the area lit becomes unoccupied. If luminous efficacy is greater than 75 light source lumens per circuit-watt, manual control is acceptable.
What does not comply with what? The 6.60(b) you quote would appear to be satisfied if a 62.72 lumen/W light which is PIR+daylight-controlled, wouldn't it?I look at the box the last GU10 came in and it says 5.5 watt 345 lumen bought in the high street not internet it is LED but at 62.72 lumen per watt it does not comply.
I'm not really sure why you say that "they should not be so", provided that the lamp/bulb is replaceable, since a 'combined unit' is really no more than a PIR detector plus a lampholder (and many people probably favour {aesthetically} having only one 'unit'). I agree that units combining a PIR detector with a non-replaceable lamp/bulb are not very sensible, since one then has to throw away the PIR detector if/when the lamp/bulb fails.You have a "Light" (luminaire) which is activated by a PIR (Passive Infrared Detector) .... If they are not contained within the same "unit" (and they should not be so) the "Light" can be anything that you wish.
I agree. I use PAR38 LEDs (usually 15W-18W or thereabouts) in my garden.LED "Par" lamps (and their ES fittings) are a good choice.
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