The second generation of Sonoff LED strips has arrived, and this time the controller works on Wifi and Bluetooth as well. Now if you internet goes down, eWeLink can fall back to Bluetooth to control your lights locally. https://sonoff.tech/product/smart-lighting/l2/ Chapters: 0:00 Intro 1:19 Unboxing 3:04 Pairing and initial setup 4:13 App controls 11:05 Setting up Wifi control and other settings 13:31 Timers and Schedules 14:55 Automation options 15:57 Outro ... https://www.youtube.com/watch?v=poHojltWaxI

Superb model of a South African Railways Class 15 F steam locomotive in 3.5" scale. Video was taken on the HWSME Open Weenend 30th of August 2009. From Friends of Rail (http://www.friendsoftherail.com) The Class 15F is undoubtedly the most famous of all the SAR main-line locomotives. So popular and useful did the F, as this class is affectionately known, prove to be, that a total of 255 engines were built between 1938 and 1948, making it the most numerous steam class not only on SAR but on the African continent. Its almost identical forerunner, the Class 15E, was designed in 1935 by Chief Mechanical Engineer A.G. Watson as a heavy mixed traffic locomotive. Fitted with the Watsons standard No. 3B boiler, the 15E itself was developed from the Class 15CA. However, for the 15F, CME W.A.J. Day reverted from Watsons favoured rotary cam-poppet (RC) valve gear, as used on the Class 15E, to long lap piston valves actuated by Walschaerts valve gear. Since the demise of the Class 23, many 15Fs were fitted with EW-type, 12-wheel tenders from the 23s giving additional coal and water capacity compared with the original ET tenders. These locomotives are also fitted with smoke deflectors and are quite at home on most duties. They have hauled all the SARs crack expresses during their service life, including the Blue Train. Builders: Henschel & Sohn / Berliner Maschinenbau AG (1938); North British Loco Co / Beyer Peacock and Co (1947). Wheel arrangement: 4-8-2 ( ooOOOOo ) Driving wheel diameter: 5 ft 0 in (1 524 mm) Cylinders: Two x 24 in x 28 in (two x 609.6 x 711.2 mm) Valve gear: Walschaert Boiler pressure: 210 lbs per sq in (14.768 kg/cm2) Grate area: 63 sq ft (5.85 m2) Tractive effort @ 75% boiler pressure: 42,340 lbs (188.336 kN, ~19 205 kp) Total length over couplers: 73 ft 6 in (22 408 mm) Engine mass (working order): 108 tons 1,200 lbs (98 521 kg) Maximum axle load: 18 tons 800 lbs (16 692 kg) Tender Mass (working order): 69 tons 800 lbs (62 959 kg) Permissible tender types: JT, ET, EW Coal capacity: 14 tons (12 701 kg) Water capacity: 5,800 gals (26 390 l) ... https://www.youtube.com/watch?v=VdEkqEVF6Uc