On 26/01/2015, at 5:48 PM, Sergey A Dryga wrote: > James Cameron laptop.org> writes: >=20 >> Design goals are: >>=20 >> - same or greater illumination, >>=20 >> - change colour temperature to match the fluorescent lamps elsewhere >> in the building, probably 4000-5000k, >>=20 >> - reduce future maintenance (ladder climbing), >>=20 >> Is it reasonable to assume that the existing PAR38 lamps are 2400 >> lumens? (Wikipedia suggests incandescent is 16 lumens per watt). >>=20 > https://www.1000bulbs.com/category/led-par38-150w-equal-fl/ > (I have no affiliation with them) > 150W equivalent, color temp 2700K - 5000K, up to 90 lumen/watt, 1700-2200 > lumens. =20 >=20 > Looks to me they fit the specs. =20 Thanks, looked at a couple, but would need voltage conversion 240V to 120V = to use them. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .