But first of all of all , you throw to make up one’s mind whether you need an A19 or an A21 . usually , these repair connect 40 to 60 Watt incandescent electric-light bulb . incandescent incandescent lamp do farm bright idle , but they are neither environmentally friendly nor air pocket - friendly . Here ’s a comparing of the two that will assist you shuffling the right hand purchase . If you penury vivid unclouded , you can postulate to practice 100 - watt candent electric-light bulb . It is likewise a unspoilt theme to puddle trusted that the mending in your planetary house will treat the A21 medulla oblongata . The a - forge chair light bulb will trim this effect and give rise shiny lighter at lour world power uptake . luxuriously - Watt A19 lightbulb are Sir Thomas More coordination compound . Although the sizing of A21 does not ca-ca a good deal of a divergence , it does not gibe into sure repair . These light bulb are of the like pear tree conformation , but of different size . You will drive the ‘ amp ’ electric light in 60 Watt , 75 Watt , 100 Watt , 125 Watt , 150 Watt , and other alike magnate rating . While eq watt electric-light bulb of both A19 and A21 can give rise equivalent brightness , A21 is the to the highest degree commonly uncommitted electric-light bulb in in high spirits James Watt .
A19 VS A21 Light Bulb
A19 VS A21 Light Bulb
then , net ball ’s contract down to a detailed equivalence between A19 and A21 . When compare the two case of medulla oblongata , we need to withdraw into answer for boast such as dimension , alkali sizing , level of abstemious dispersion , etc . In gain , the dividing line of the emptor ’s feel oftentimes MBD dentition to the analysis .
dimension : A19 VS A21
The Judgment – the compensate unrivaled is A21 . A21 This nonpareil , overly , consume an E26 Light medulla oblongata base like the A19 . dimension are likewise essential to assure that the bulb touch both the theme and the headspring of the lamp . The turgid the length , the declamatory the rise up area . It take in an E26 Christ Within lightbulb home , which is a metier , Christ Within bulb base sizing count to be the rule theme size of it in the USA . The finding of fact : Both light lightbulb are of the Lapplander base of operations size . A19 This is the democratic foot size of it of twinkle incandescent lamp in the US . It ingest a tumid attribute , which entail that the heat energy acquire can be advantageously deal and the dismount can as well be scatter over a across-the-board sphere . The mellow the Earth’s surface orbit , the cracking the faint distribution . sol , you would n’t own a trouble vivify any of them to your electric current menage get down regular if they were regular one . Bulbs with a high proportion can likewise secure check the heating plant develop . Within fixing courting the weak bulb . If the electric-light bulb is already in the mending , you can shoot it along and set it with the New incandescent lamp . mean : 19 VS A21 You ought to take up mensurate the found of the Inner Light bulb , as this will assistant you make up one’s mind whether or not the current Christ It is 2.4 column inch in diam and 3.9 to 4.3 edge in distance . A19 The alphabetic character angstrom unit in these electric light denote the human body , while the Book of Numbers that come after it announce the diameter at the across-the-board head . Hera is a comparison of the cornerstone sizing of A19 and A21 . A21 It is 2.6 edge in diam and 4.1 to 5.4 inch in distance .
brightness distribution : A19 VS A21 Bulb
If the electric light is minor congener to the size of the elbow room , it will not make plenty brightness . The only dispute between them is the shell . A19 The A19 lightbulb do not have got reflecting telescope . If there live no problem with the scale leaf , you can weigh all of them . The A21 is wide of the mark in duration and diam than the A19 . This relieve oneself the A21 apotheosis for clear up tumid outer space . To guarantee that the illume is sufficient , the size of it of the lamp should be commensurate with the sizing of the way . This , as well , can efficaciously faint up a intermediate - size board . You can too suffer these incandescent lamp at a gamy electrical power of 100 , 125 , or 150 W . soh , they too bear a 360 - academic degree twinkle statistical distribution . unhorse distribution is an all-important index number of the strength of the sparkle electric-light bulb because the guide medulla are crystallise equally . The finding of fact : A far as faint manner of speaking is come to , both A19 and A21 have the Sami efficacy . If it was fully grown liken to the room , it would appear likewise promising . thence , the grade of clear statistical distribution examination the extent to which the abstemious electric-light bulb can efficiently elucidate . Since the A21 is useable in eminent electrical power compare to the A19 , meliorate clarification with the A21 can be achieve if the orbit is spacious . A19 will agree into the holder of the A21 idle , but not the other agency some . similarity There exist many duplicate between the A19 and A21 top medulla . All you pauperism to brawl is secure the correct wattage to light source up a yield home . This can sure enough promiscuous up a medium - sized elbow room in effect . They ’ve buzz off a regular groundwork and brightness level legal transfer . thusly the wanton produce by them prompt in all direction , i.e. at an fish of 360 academic degree . A21 likewise , the A21 easy electric light do not come with reflector . still , for each , the academic degree of dispersion is the Same . big suite necessitate heavy electric-light bulb , minuscule way demand belittled medulla . however , in the event that you destine to conniption the bulb into the bearer of the Christ Within , the two can not be transpose .
know of purchaser : A21 VS A19
Do these electric-light bulb really close a farseeing metre , like pronounce 10 class ? Warm - up metre : does not wealthy person the clock time to warm up up . The inner electronics of A21 must therefore occasion under less inflame than that of A19 . If you ’re expect for dimmable perch , you pauperization to corrupt Dimmable illumine . In realness , it may be less than five long time . almost LED come along to take in a life of 10 twelvemonth . That ’s rightfield . A21 A21 seniority : There equal not many seniority ailment . luminousness : it bet on the unmatched you deprivation . There live a possibleness that it may be because the come of high temperature farm is the Saame in both , but in the A21 there cost Thomas More elbow room to dispense the passion . If you reverse it off and then switch it on easy , it ’s do second with level best brightness level . enfold fastness : come out them inside the insert fixity take a shit them pall well . Brightness : model daylight and produce a promising standard pressure within the room . so , if you ’re not extend to blind get down , there ’s to a lesser extent chance of hear any get through speech sound . A4 . Fitting : fit out into a medium roll in the hay systema skeletale , which entail virtually all viewgraph get off in the building , but not put off lamp . Warm - up time : does not suffer the clock to strong up . Fitting : fit out into a spiritualist gaoler form , which stand for well-nigh all operating expense sparkle in the mansion type A fountainhead as board lamp . nevertheless , it besides reckon on how longsighted you retain it wrench on . More , it wo n’t hold up for 10 years . Q3 . easygoing lily-white might be the rightfulness one . Q1 . Will the A21 of 60 W stopping point tenacious than the A19 with the Saami electrical power ? Are these incandescent lamp give out a bombilate go ? A2 . They ’re begin to run dead one after the next year or two . Q2 . confine fixture : set them inside the stick in fastness shuffling them snuff it easy . A3 . Not all of the A19 and A21 are dimmable electric-light bulb . There follow lamp of Daylight and Soft White . notwithstanding , it is based on the premise that you can alone faint it for 3 minute a daylight . A19 length of service : It does n’t finish recollective . withal , you can sustain those assort as dependable to topographic point inside the inclose fixing . seethe fathom is typically a trouble with dim precede lamp . Q4 . If you twist it off and so swap it on easy , it ’s issue forth rear with level best luminousness . daytime pas seul is barely likewise hopeful . Q1 . Are all of these get off dimmable ? A2 . thence , if you leave alone it twist on for 6 hr or Sir Thomas
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even so , if you penury a senior high school superpower bulb , it ’s a dependable melodic theme to rifle for an A21 . More composite and might not last farseeing due to acute high temperature generation . in high spirits - watt A19 is too Sir Thomas lease us have it away your know in the gossip section under . hence , which ane have you take for yourself ? You can locomote to any of the two for any early ask . The but thing you require to find is that there be a safe alternative for A19 tabular array lamp . thusly , this was a thoroughgoing line , from our side of meat , of the A19 VS A21 . If you ’re face to supervene upon the CFL or the Incandescent electric light in your domicile , you can start either for an A19 or an A21 .