Technical parameters of S-J2 sound and light alarm 1> Model: S-S sound and light alarm, overhead crane sound and light alarm; S-L1 sound and light alarm, overhead crane sound and light alarm; S-L2 sound and light alarm, overhead crane sound and light alarm; S-J1 sound and light alarm, overhead crane sound and light alarm; S-J2 sound and light alarm, overhead crane sound and light alarm; S-J3 sound and light alarm, overhead crane sound and light alarm; S-F1 sound and light alarm, overhead crane sound and light alarm; S-F2 type sound and light alarm, overhead crane sound and light alarm, S-JHS sound and light alarm, overhead crane sound and light alarm; S-JHF sound and light alarm, overhead crane sound and light alarm; S-JHL sound and light alarm, overhead crane sound and light alarm; S-JHJ sound and light alarm, overhead crane sound and light alarm 2> Working power supply AC220V, 380V, DC12V、24V 3> Power 35W 4> Shell material: cold-rolled steel plate, engineering plastic 5> Protection level: IP65 6> Tones: engineering sound, siren sound, fire alarm sound, air defense alarm sound 7> Volume: 125dB Warning light Technical specifications: S-S: Rotating warning light, outdoor waterproof, shockproof, dustproof, high brightness S-L1: LED strobe light, monochrome multi frequency flashing, high brightness, long lifespan, waterproof, shockproof. S-L2: LED strobe light, red and blue dual color multi frequency flashing, high brightness, long lifespan, waterproof, and shockproof. S-F1: Rotating warning light with protective cover: outdoor waterproof, shockproof, dustproof, high brightness S-F2: LED warning light with protective cover: dual color multi frequency flashing, outdoor waterproof, shockproof, dustproof, high brightness. S-J1: Rotating warning light, outdoor waterproof, shockproof, dustproof, high brightness S-J2: LED strobe light, red multi frequency flashing, high brightness, long lifespan, waterproof, shockproof, stable quality S-J3: LED strobe light, red and blue dual color multi frequency flashing, high brightness, long lifespan, waterproof, shockproof, and stable quality < br /> JD1C-90 JD1C-40 JD1C-11 JD1A-40 JD1IIA-90 JD1 II A-40 YCT132-4B YCT112-4B CTKT-90/B CTKT-90/M YLJ-K-3F DC-51 DXK-4C DXK-4B TC-2D TC-2C TC-2A ZC-1A DK-2E DK-2C DK-2 DK-1C DK-1B JDZ-40 JDK-3 JDK-2 JD1B-90 JD1B-11 JD1B-40 JD1A-90 JD1A-11 JD1 II A-11 YCT400-4B YCT400-4A