... Diffuser External Driver 28W Super-thin Panel Light instead of T5 office lighting fixtures, led Super-thin light panel,modern office panel lights Specification power supply100-240VAC ... Sound sensor, Emergency etc at option• 30W 2500LM, Super-thin 60x60 cm led panel lighting• SMD3014×252pcs,27W,2550Lm, External Driver• Sound sensor, Emergency ...