Explosion-proof interior light with UL listed exterior on/off switch. Explosion-proof mechanical fan tied to light switch for forced vapor removal. Rated at 350 CFM minimum. Explosion-proof conduit and wiring with seal-offs.Notes:• This accessory must be purchased in conjunction with a locker to ensure proper installation and to retain FM-approval.• Due to space constraints shelving and interior light packages cannot be ordered together on 2- and 4-drum models. This also includes 52- and