382 Bulb 12V 21W P21W - Brake Reverse Indicator Bulb BA15s - Classic

Standard single-filament automotive bulb with BA15s bayonet base, designed for brake lights, reversing lights, indicators, and rear fog lights.
The Classic 382 bulb (also known as P21W) features a single-contact bayonet fitting with straight pins for secure installation. Delivering approximately 460-550 lumens, this E-marked bulb is road legal for UK and European vehicles. Suitable for cars and commercial vehicles requiring robust, high-vibration-resistant lighting.

Key Features

• Single Filament Design: 21W power for bright, consistent light output across multiple applications
• BA15s Bayonet Base: 15mm diameter with single center contact and straight/opposite pins
• High Output: Approximately 460-550 lumens for excellent visibility
• Robust Construction: High vibration resistance suitable for commercial vehicles and demanding conditions
• Road Legal: E-marked for UK and European compliance
• Plug and Play: Direct replacement, standard installation with no modifications required
• Multi-Purpose: Suitable for brake, reverse, indicator, fog, and DRL applications

Technical Specifications

Application & Usage Guide

Common Applications:

• Brake lights / Stop lights
• Reversing lights / Backup lights
• Indicator lights / Turn signals (clear version)
• Rear fog lights
• Daytime running lights (DRL)

Also Known As: P21W, BA15s, 7506, LLB382

BA15s vs BAY15d: The 382 (P21W) uses a BA15s base with a single contact point and is a single-filament bulb. This differs from the BAY15d base (used in 380 P21/5W bulbs) which has dual contacts for dual-filament operation. Always verify which base type your vehicle requires.

Installation: Align the straight pins on the BA15s base with the socket slots, insert the bulb, and twist clockwise to lock in place. The bayonet design ensures secure fitment. Always ensure the ignition is off before replacing bulbs and replace in pairs for consistent appearance.

Compatibility: Suitable for most cars and commercial vehicles with 12V DC electrical systems requiring P21W bulbs with BA15s single-contact base. Check your vehicle handbook or existing bulb to confirm 382/P21W fitment before purchase.

Important Safety & Compatibility Information

• Always verify bulb type in your vehicle handbook before purchasing
• Switch off ignition and allow bulbs to cool before handling
• Do not touch glass with bare hands; use a clean cloth to avoid oil contamination
• Ensure bulb is correctly seated and twisted to lock in socket
• Replace bulbs in pairs for consistent light output and appearance
• For indicator use, amber versions (581 PY21W) are available separately
• Hard glass construction provides durability but handle with care
• Dispose of used bulbs responsibly at household waste recycling centres
• Keep out of reach of children

SHIPPING & RETURNS

Shipping:

• Fast UK delivery available
• Local collection option at checkout
• Orders dispatched within 1-2 working days
• Tracked shipping on all orders

Returns:

• 14-day return policy on unopened products
• Items must be unused and in original packaging
• Contact gtmotorspart@outlook.com for return authorization
• Opened bulbs are non-returnable for safety and hygiene reasons

WHY CHOOSE US

• Trusted Quality: Genuine OEM-approved parts and premium fluids from authorized suppliers
• Competitive Pricing: Best value on premium automotive oils and maintenance products
• Fast Local Delivery & Collection: Quick dispatch with flexible delivery and collection options across the UK
• Friendly Support: Expert advice and customer service from automotive specialists