The type 2A was a high-candle-power lamp made by Davis of Derby. One of the key features of high-candle-power lamps was the introduction of the combustion tube. This additional glass tube surrounded the flame, aiding combustion to produce a bright white flame. The Haydock Pattern lamp used a tube patented by Haydock and Naylor. Improvements to the fuel combined by the new design meant that the No.2 could produce around 4-5 candlepower of light.
