Tubular lamp 25x85mm general purpose light bulb tubular shape size 4 E14. Lamps of this design are used wherever there is very little space available for lighting, for example in household appliances, refrigerators, furniture and sewing machines. Energy efficiency class: E Weighted consumption (kWh/1000h): 40 Mercury content (mg): 0 Switching cycles: 4000 Colour rendering index (Ra): 100 Power factor: 1 Service life (h): 1000