Check the listing for details. Dimmable Microscope LED Bulb 12V 3W BA15D Lamp & Dimmer for DYI Conversions. Condition: New. Listed at 29.95 USD. After many years of trial and error, I've come up with this simple DYI kit for microscopes employing a BA15D socket. The bulb works great together with the dimmer. You may need to rotate the bulb socket so the bulbs is square (pointing up). Dual Pin Dimmable Microscope LED Bulb: 12V 3W BA15D Lamp for DYI Conversions. This extra-bright lamp works great in DYI LED conversions where you want to employ the existing BA15D base. Bulb Specs: Type: COB AC12V/DC12V bulb Base: BA15D Power: 3W Length: 60mm Color: White (5000-6500K) Dimmer Specs: (1) Working voltage: DC5V-35V (2) Control power: 90W (maximum) (3) Quiescent current: 0.015A (standby state) (4) PWM duty cycle: 1%-100% (5) PWM frequency: 10khz Shell size: 30MMx 24MM (excluding handle), total height 15MM Requires a 12V DC power supply sold s Normal 0 false false false EN-US X-NONE X-NONE eparately. Please inquire for pricing.