Features:1. Compatible with 3D/4D flashlights using bayonet base, delivers bright 4.8V 0.75A krypton beam for everyday use2. Durable glass and metal construction ensures long service life and reliable performance3. Simple tool-free installation: align and twist to secure the standard bayonet base4. Compact design (approx. 0.3 cm / 0.12 inches) for easy storage5. 3-pack provides spare bulbs so your flashlight is always ready when neededProduct Details:Upgrade your flashlight with these reliable krypton replacement bulbs. They produce a bright beam (4.8V, 0.75A) suitable for general use. Made from durable glass and metal, they work with flashlights that require a bayonet base and support 3D/4D batteries. Installation is quick and tool-free—just align and twist. The compact size makes storage simple. This practical 3-pack ensures you always have backups on hand.Specifications:Material: Glass, MetalPart Number: 41-1660Bulb Type: Krypton, Bayonet BaseOutput: 4.8 Volts, 0.75 AmpsCompatible with: 3D/4D FlashlightsApprox. Length: 0.3 cm / 0.12 inchesPackage Includes: 3 x Replacement Bulbs