***This Is Not a Plug-and-Play Type***: You must disconnect ballast and do fixture rewiring if you had fluorescent bulb in your fixture. The installation manual is attached as the 2nd photo at the left upper corner of this product page. Please review it before buying.
Ideal for RV and Marine Lighting: To replace F15T8 and F15T12 fluorscent tube with Instant-On Daylight 6000K (4-Pack) under the power supply of 12V or 24V DC! Cannot be used in 110/120V AC home fixtures.
Actual length 17-3/4" including pins: Replaces bulb with actual length from 17-5/8" to 17-3/4"!
Rotatable: light forwarding angle can be adjusted by +-90 degrees to fit any light fixture!
Low heat, eco-friendly, and saving >50% electricity