The lamp you installed probably doesn't ignite because of its wrong voltage
5 s Warm-up Time Up to 60% of the Full Light Output (sec) Instant Total Harmonic Distortion
Attribute Value Length Imperial 5ft Length Metric 1500mm Wattage 21 W Lamp Size T5 Colour Rendering 80 Colour Reference 830 Colour Temperature 3000K Colour Tone Warm White Voltage Rating 240 V ac Luminosity 2250 lm Life Hours 30000h EU Energy Efficiency Rating A++
recovers automatically after fault condition removed Others Working Temp
And European 2-Pin Plug and US 2-Pin Plug
ABB 2CCG001248R0001, S804P-D100, High Performance MCB 100A 4Pole 50kA Type 'D' Circuit Breaker Troffer The lamp you installed probablyGeneral Information Extended Product Type: S804P D100 Product ID: 2CCG001248R0001 EAN: 7612271517175 Catalog Description: S804P D100 High Performance Circuit Breaker. D Characteristic. 50kA, 100A, 4P Long Description: S804P D100 High Performance Circuit Breaker. D Characteristic. 50kA, 100A, 4P Display Name: S804P D100