Motors tend to use 8x Surge current relative to rated current
Light bulbs use 10x surge current relative to rated power > current.
Thus contact derating is needed. But you can use a small relay to driver a larger Contactor Relay. with current gain of 1000 minimum.
MAX. SWITCHING CURRENT:7A, 10A
MAX. SWITCHING VOLTAGE:28V DC/ 250V AC
DIELECTRIC STRENGTH VR.M.S: BETWEEN OPEN CONTACTS =750VAC;
DC is lower due to arc quenching is not possible if current is too high.