Editing Spurn (section)

====Lighting arrangements====
[[File:Spurn Low Lighthouse.JPG|thumb|left|James Walker's new (1852) Low Light, while still operational.]]
Initially both lighthouses were coal-fired. When the low light was rebuilt in 1816, it was equipped with [[Argand lamp]]s and [[Parabolic reflector|reflectors]].<ref>{{London Gazette |issue=17192 |date=16 November 1816 |page=2172 }}</ref> As a result, it outshone the high light; so in 1819 Smeaton's high tower was likewise fitted with Argand lamps and reflectors (24 in number).<ref name="Report" /> 

The wooden low light, in use after 1830, had a smaller lantern than its predecessor;<ref name="deBoer1968" /> in 1848, it was equipped with a small [[Fresnel lens]] (a fifth-order [[Lenticular lens|lenticular dioptric]]) and this was reused, in Walker's tower, when the low light was rebuilt in 1852.<ref name="Report" /> The following year, a Fresnel lens was installed in Smeaton's tower (the high light): this was a large ([[Fresnel lens#Lighthouse lens sizes|first-order]]) fixed optic, made by Henry Lepaute of Paris. (Prior to installation this lens had been exhibited at the [[Great Exhibition of 1851]]).<ref>{{cite web | title = Lighthouse management : the report of the Royal Commissioners on Lights, Buoys, and Beacons, 1861, examined and refuted Vol. 1 | page = 30 | url = https://deriv.nls.uk/dcn23/8037/80373343.23.pdf }}</ref> In 1867 a red [[Sector light|sector]] was added, which warned ships of hazards to the south ranging from [[Cleethorpes|Clee Ness]] to Sand Haile Flats;<ref>{{London Gazette |issue=23255 |date=24 May 1867 |page=3000 }}</ref> (initially applied to the low light, it was moved to the high light in 1871).<ref>{{London Gazette |issue=23691 |date=27 December 1870 |page=5920 }}</ref> The high light was made [[Occulting Light|occulting]] (once every half minute) in 1883.<ref>{{London Gazette |issue=25244 |date=22 June 1883 |page=3213 }}</ref>